diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models.py
index 539a76a6ef69..b1a50ba11798 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models.py
@@ -1355,16 +1355,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models_py3.py
index 6b8c520007d1..361dba780d24 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_04_01/models/_models_py3.py
@@ -1355,16 +1355,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models.py
index fca160da6c9b..06e5d873dd93 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models.py
@@ -1550,16 +1550,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models_py3.py
index e1c47b6a0815..68a131cab000 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_06_01/models/_models_py3.py
@@ -1550,16 +1550,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models.py
index e36ae02c6656..c04a95855558 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models.py
@@ -1670,16 +1670,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models_py3.py
index 3099e49dfe8d..d5f387c72aff 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_08_01/models/_models_py3.py
@@ -1670,16 +1670,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models.py
index 513ea9e08069..fb4c4553d243 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models.py
@@ -1675,16 +1675,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models_py3.py
index 21813c40a685..ad5f4f975f2e 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_10_01/models/_models_py3.py
@@ -1675,16 +1675,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models.py
index 23db40809a05..1833d9edd595 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models.py
@@ -1808,16 +1808,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models_py3.py
index 7b09a95d655b..dfc9a21c7764 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2019_11_01/models/_models_py3.py
@@ -1808,16 +1808,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models.py
index a86b9794d934..cbfcb3ea1045 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models.py
@@ -1813,16 +1813,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models_py3.py
index c1ce6e5b9edf..89b0187ece3e 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_01_01/models/_models_py3.py
@@ -1813,16 +1813,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models.py
index b79a62b771be..4dbb9b4a474d 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models.py
@@ -1889,16 +1889,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models_py3.py
index 61f13fec20b9..3feb5833703f 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_02_01/models/_models_py3.py
@@ -1889,16 +1889,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models.py
index 254bf643a26a..6a53712090da 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models.py
@@ -1944,16 +1944,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models_py3.py
index 73e5cd0fa221..b386faf7e939 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_03_01/models/_models_py3.py
@@ -1944,16 +1944,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models.py
index c7158acac063..9f41600a8cee 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models.py
@@ -1991,16 +1991,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models_py3.py
index 2781d072a7c5..dd648285fac2 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_04_01/models/_models_py3.py
@@ -1991,16 +1991,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models.py
index 66a0dfa9273e..dc33217ffeb7 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models.py
@@ -2044,16 +2044,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models_py3.py
index bc3bcbc371b5..86c9234e7936 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_06_01/models/_models_py3.py
@@ -2044,16 +2044,28 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models.py
index 7b336f47e330..5ca0dd4d0b43 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models.py
@@ -2047,10 +2047,23 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     :param license_type: The licenseType to use for Windows VMs.
      Windows_Server is used to enable Azure Hybrid User Benefits for Windows
@@ -2060,8 +2073,7 @@ class ManagedClusterWindowsProfile(Model):
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models_py3.py
index f4e55b526fe9..fc57daf5459b 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_07_01/models/_models_py3.py
@@ -2047,10 +2047,23 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     :param license_type: The licenseType to use for Windows VMs.
      Windows_Server is used to enable Azure Hybrid User Benefits for Windows
@@ -2060,8 +2073,7 @@ class ManagedClusterWindowsProfile(Model):
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models.py
index 9141e796265f..ee428e20907b 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models.py
@@ -2123,10 +2123,23 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     :param license_type: The licenseType to use for Windows VMs.
      Windows_Server is used to enable Azure Hybrid User Benefits for Windows
@@ -2136,8 +2149,7 @@ class ManagedClusterWindowsProfile(Model):
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {
diff --git a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models_py3.py b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models_py3.py
index f1c895cd9953..bd768045a898 100644
--- a/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models_py3.py
+++ b/sdk/containerservice/azure-mgmt-containerservice/azure/mgmt/containerservice/v2020_09_01/models/_models_py3.py
@@ -2123,10 +2123,23 @@ class ManagedClusterWindowsProfile(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param admin_username: Required. The administrator username to use for
-     Windows VMs.
+    :param admin_username: Required. Specifies the name of the administrator
+     account. <br><br> **restriction:** Cannot end in "." <br><br> **Disallowed
+     values:** "administrator", "admin", "user", "user1", "test", "user2",
+     "test1", "user3", "admin1", "1", "123", "a", "actuser", "adm", "admin2",
+     "aspnet", "backup", "console", "david", "guest", "john", "owner", "root",
+     "server", "sql", "support", "support_388945a0", "sys", "test2", "test3",
+     "user4", "user5". <br><br> **Minimum-length:** 1 character <br><br>
+     **Max-length:** 20 characters
     :type admin_username: str
-    :param admin_password: The administrator password to use for Windows VMs.
+    :param admin_password: Specifies the password of the administrator
+     account. <br><br> **Minimum-length:** 8 characters <br><br>
+     **Max-length:** 123 characters <br><br> **Complexity requirements:** 3 out
+     of 4 conditions below need to be fulfilled <br> Has lower characters
+     <br>Has upper characters <br> Has a digit <br> Has a special character
+     (Regex match [\\W_]) <br><br> **Disallowed values:** "abc@123",
+     "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1",
+     "Password!", "Password1", "Password22", "iloveyou!"
     :type admin_password: str
     :param license_type: The licenseType to use for Windows VMs.
      Windows_Server is used to enable Azure Hybrid User Benefits for Windows
@@ -2136,8 +2149,7 @@ class ManagedClusterWindowsProfile(Model):
     """
 
     _validation = {
-        'admin_username': {'required': True, 'pattern': r'^[a-zA-Z0-9]+([._]?[a-zA-Z0-9]+)*$'},
-        'admin_password': {'pattern': r'^(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%\^&\*\(\)])[a-zA-Z\d!@#$%\^&\*\(\)]{12,123}$'},
+        'admin_username': {'required': True},
     }
 
     _attribute_map = {