diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/compute.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/compute.json
index c2ff7a68849b..8f2567920268 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/compute.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/compute.json
@@ -2137,6 +2137,60 @@
         "x-ms-long-running-operation": true
       }
     },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/reimage": {
+      "post": {
+        "tags": [
+          "VirtualMachines"
+        ],
+        "operationId": "VirtualMachines_Reimage",
+        "description": "Reimages (upgrade the operating system) virtual machine. This operation is only supported for differencing OS disks.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+           {
+            "name": "vmName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the virtual machine."
+          },
+          { 
+            "name": "parameters",
+            "in": "body",
+            "required": false,
+            "schema": {
+              "$ref": "#/definitions/VirtualMachineReimageParameters"
+             },
+            "description": "Parameters supplied to the Reimage Virtual Machine operation."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          },
+          "202": {
+            "description": "Accepted"
+          }
+        },
+        "x-ms-long-running-operation": true,
+        "x-ms-examples": {
+          "Reimage a Virtual Machine.": {
+            "$ref": "./examples/ReimageVirtualMachine.json"
+          }
+        }
+      }
+    },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/performMaintenance": {
       "post": {
         "tags": [
@@ -3202,13 +3256,13 @@
             "description": "The name of the VM scale set."
           },
           {
-            "name": "vmInstanceIDs",
+            "name": "vmScaleSetReimageInput",
             "in": "body",
             "required": false,
             "schema": {
-              "$ref": "#/definitions/VirtualMachineScaleSetVMInstanceIDs"
+              "$ref": "#/definitions/VirtualMachineScaleSetReimageParameters"
             },
-            "description": "A list of virtual machine instance IDs from the VM scale set."
+            "description": "Parameters for Reimaging VM ScaleSet."
           },
           {
             "$ref": "#/parameters/ApiVersionParameter"
@@ -3516,6 +3570,15 @@
             "type": "string",
             "description": "The instance ID of the virtual machine."
           },
+          {
+            "name": "vmScaleSetVMReimageInput",
+            "in": "body",
+            "required": false,
+            "schema": {
+              "$ref": "#/definitions/VirtualMachineScaleSetVMReimageParameters"
+            },
+            "description": "Parameters for the Reimaging Virtual machine in ScaleSet."
+          },
           {
             "$ref": "#/parameters/ApiVersionParameter"
           },
@@ -4851,6 +4914,15 @@
       ],
       "description": "The List Usages operation response."
     },
+    "VirtualMachineReimageParameters": {
+      "properties": {
+        "tempDisk": {
+          "type": "boolean",
+          "description": "Specified whether to reimage temp disk. Default value: false."
+        }
+      },
+      "description": "Paramaters for Reimaging Virtual Machine. Default value for OSDisk : true."
+    },
     "VirtualMachineCaptureParameters": {
       "properties": {
         "vhdPrefix": {
@@ -7300,6 +7372,31 @@
       ],
       "description": "Describes a Virtual Machine Scale Set."
     },
+    "VirtualMachineScaleSetVMReimageParameters": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/VirtualMachineReimageParameters"
+        }
+      ],
+      "description": "Describes a Virtual Machine Scale Set VM Reimage Parameters."
+    },
+    "VirtualMachineScaleSetReimageParameters": {
+      "properties": {
+        "instanceIds": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "description": "The virtual machine scale set instance ids. Omitting the virtual machine scale set instance ids will result in the operation being performed on all virtual machines in the virtual machine scale set."
+        }
+      },
+      "allOf": [
+        {
+          "$ref": "#/definitions/VirtualMachineScaleSetVMReimageParameters"
+        }
+      ],
+      "description": "Describes a Virtual Machine Scale Set VM Reimage Parameters."
+    },
     "VirtualMachineScaleSetUpdate": {
       "properties": {
         "sku": {
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsRequestRateByInterval.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsRequestRateByInterval.json
index 75a6ffa2affc..220d13819906 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsRequestRateByInterval.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsRequestRateByInterval.json
@@ -14,13 +14,9 @@
   "responses": {
     "200": {
       "body": {
-        "startTime": "2018-01-30T17:54:14.8806951-08:00",
-        "endTime": "2018-01-30T17:54:17.5832413-08:00",
-        "status": "Succeeded",
         "properties": {
           "output": "https://crptestar4227.blob.core.windows.net:443/sascontainer/RequestRateByInterval_20180121-0154_20180123-0154.csv"
-        },
-        "name": "8eb1169a-5cf9-46b1-aadf-41e4f60692df"
+        }
       }
     },
     "202": {
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsThrottledRequests.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsThrottledRequests.json
index 5607d80641cb..1d94418a5062 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsThrottledRequests.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/LogAnalyticsThrottledRequests.json
@@ -14,13 +14,9 @@
   "responses": {
     "200": {
       "body": {
-        "startTime": "2018-01-30T17:54:14.8806951-08:00",
-        "endTime": "2018-01-30T17:54:17.5832413-08:00",
-        "status": "Succeeded",
         "properties": {
           "output": "https://crptestar4227.blob.core.windows.net:443/sascontainer/ThrottledRequests_20180121-0154_20180123-0154.csv"
-        },
-        "name": "8eb1169a-5cf9-46b1-aadf-41e4f60692df"
+        }
       }
     },
     "202": {
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/ReimageVirtualMachine.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/ReimageVirtualMachine.json
new file mode 100644
index 000000000000..0cfb15923b24
--- /dev/null
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/ReimageVirtualMachine.json
@@ -0,0 +1,17 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "api-version": "2018-06-01",
+    "vmName": "myVMName",
+    "parameters": {
+        "tempDisk": true
+    }
+  },
+  "responses": {
+    "200": {
+    },
+    "202": {
+    }
+  }
+}
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/VMScaleSetExtensionRollingUpgrade.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/VMScaleSetExtensionRollingUpgrade.json
index 4d865f9883b4..3acda5563f69 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/VMScaleSetExtensionRollingUpgrade.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-06-01/examples/VMScaleSetExtensionRollingUpgrade.json
@@ -7,12 +7,6 @@
   },
   "responses": {
     "200": {
-      "body": {
-        "startTime": "2017-12-16T16:01:37.8958419-07:00",
-        "endTime": "2017-12-16T18:10:11.2897717-07:00",
-        "status": "Succeeded",
-        "name": "289dbc84-3c84-4a86-9e40-bbd4d61edcaf"
-      }
     },
     "202": {
     }
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/compute.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/compute.json
index 6cd417649100..b0115f09d8f5 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/compute.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/compute.json
@@ -2137,6 +2137,60 @@
         "x-ms-long-running-operation": true
       }
     },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/reimage": {
+      "post": {
+        "tags": [
+          "VirtualMachines"
+        ],
+        "operationId": "VirtualMachines_Reimage",
+        "description": "Reimages (upgrade the operating system) virtual machine. This operation is only supported for differencing OS disks.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+           {
+            "name": "vmName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the virtual machine."
+          },
+          { 
+            "name": "parameters",
+            "in": "body",
+            "required": false,
+            "schema": {
+              "$ref": "#/definitions/VirtualMachineReimageParameters"
+             },
+            "description": "Parameters supplied to the Reimage Virtual Machine operation."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          },
+          "202": {
+            "description": "Accepted"
+          }
+        },
+        "x-ms-long-running-operation": true,
+        "x-ms-examples": {
+          "Reimage a Virtual Machine.": {
+            "$ref": "./examples/ReimageVirtualMachine.json"
+          }
+        }
+      }
+    },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines/{vmName}/performMaintenance": {
       "post": {
         "tags": [
@@ -3202,13 +3256,13 @@
             "description": "The name of the VM scale set."
           },
           {
-            "name": "vmInstanceIDs",
+            "name": "vmScaleSetReimageInput",
             "in": "body",
             "required": false,
             "schema": {
-              "$ref": "#/definitions/VirtualMachineScaleSetVMInstanceIDs"
+              "$ref": "#/definitions/VirtualMachineScaleSetReimageParameters"
             },
-            "description": "A list of virtual machine instance IDs from the VM scale set."
+            "description": "Parameters for Reimaging VM ScaleSet."
           },
           {
             "$ref": "#/parameters/ApiVersionParameter"
@@ -3516,6 +3570,15 @@
             "type": "string",
             "description": "The instance ID of the virtual machine."
           },
+          {
+            "name": "vmScaleSetVMReimageInput",
+            "in": "body",
+            "required": false,
+            "schema": {
+              "$ref": "#/definitions/VirtualMachineScaleSetVMReimageParameters"
+            },
+            "description": "Parameters for the Reimaging Virtual machine in ScaleSet."
+          },
           {
             "$ref": "#/parameters/ApiVersionParameter"
           },
@@ -4866,6 +4929,15 @@
       ],
       "description": "The List Usages operation response."
     },
+    "VirtualMachineReimageParameters": {
+      "properties": {
+        "tempDisk": {
+          "type": "boolean",
+          "description": "Specified whether to reimage temp disk. Default value: false."
+        }
+      },
+      "description": "Paramaters for Reimaging Virtual Machine. Default value for OSDisk : true."
+    },
     "VirtualMachineCaptureParameters": {
       "properties": {
         "vhdPrefix": {
@@ -7315,6 +7387,31 @@
       ],
       "description": "Describes a Virtual Machine Scale Set."
     },
+    "VirtualMachineScaleSetVMReimageParameters": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/VirtualMachineReimageParameters"
+        }
+      ],
+      "description": "Describes a Virtual Machine Scale Set VM Reimage Parameters."
+    },
+    "VirtualMachineScaleSetReimageParameters": {
+      "properties": {
+        "instanceIds": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "description": "The virtual machine scale set instance ids. Omitting the virtual machine scale set instance ids will result in the operation being performed on all virtual machines in the virtual machine scale set."
+        }
+      },
+      "allOf": [
+        {
+          "$ref": "#/definitions/VirtualMachineScaleSetVMReimageParameters"
+        }
+      ],
+      "description": "Describes a Virtual Machine Scale Set VM Reimage Parameters."
+    },
     "VirtualMachineScaleSetUpdate": {
       "properties": {
         "sku": {
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsRequestRateByInterval.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsRequestRateByInterval.json
index 586cc00b6395..6a8ec46f8b21 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsRequestRateByInterval.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsRequestRateByInterval.json
@@ -14,13 +14,9 @@
   "responses": {
     "200": {
       "body": {
-        "startTime": "2018-01-30T17:54:14.8806951-08:00",
-        "endTime": "2018-01-30T17:54:17.5832413-08:00",
-        "status": "Succeeded",
         "properties": {
           "output": "https://crptestar4227.blob.core.windows.net:443/sascontainer/RequestRateByInterval_20180121-0154_20180123-0154.csv"
-        },
-        "name": "8eb1169a-5cf9-46b1-aadf-41e4f60692df"
+        }
       }
     },
     "202": {
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsThrottledRequests.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsThrottledRequests.json
index c71492cdb319..ca5f9bec8d1e 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsThrottledRequests.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/LogAnalyticsThrottledRequests.json
@@ -14,13 +14,9 @@
   "responses": {
     "200": {
       "body": {
-        "startTime": "2018-01-30T17:54:14.8806951-08:00",
-        "endTime": "2018-01-30T17:54:17.5832413-08:00",
-        "status": "Succeeded",
         "properties": {
           "output": "https://crptestar4227.blob.core.windows.net:443/sascontainer/ThrottledRequests_20180121-0154_20180123-0154.csv"
-        },
-        "name": "8eb1169a-5cf9-46b1-aadf-41e4f60692df"
+        }
       }
     },
     "202": {
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/ReimageVirtualMachine.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/ReimageVirtualMachine.json
new file mode 100644
index 000000000000..6f4247dd00b5
--- /dev/null
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/ReimageVirtualMachine.json
@@ -0,0 +1,17 @@
+{
+  "parameters": {
+    "subscriptionId": "{subscription-id}",
+    "resourceGroupName": "myResourceGroup",
+    "api-version": "2018-10-01",
+    "vmName": "myVMName",
+    "parameters": {
+        "tempDisk": true
+    }
+  },
+  "responses": {
+    "200": {
+    },
+    "202": {
+    }
+  }
+}
diff --git a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/VMScaleSetExtensionRollingUpgrade.json b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/VMScaleSetExtensionRollingUpgrade.json
index f01e62f35086..f73791f7c578 100644
--- a/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/VMScaleSetExtensionRollingUpgrade.json
+++ b/specification/compute/resource-manager/Microsoft.Compute/stable/2018-10-01/examples/VMScaleSetExtensionRollingUpgrade.json
@@ -7,12 +7,6 @@
   },
   "responses": {
     "200": {
-      "body": {
-        "startTime": "2017-12-16T16:01:37.8958419-07:00",
-        "endTime": "2017-12-16T18:10:11.2897717-07:00",
-        "status": "Succeeded",
-        "name": "289dbc84-3c84-4a86-9e40-bbd4d61edcaf"
-      }
     },
     "202": {
     }