diff --git a/scripts/common.lib.ps1 b/scripts/common.lib.ps1
index a83f19a7f6..1e363435f8 100644
--- a/scripts/common.lib.ps1
+++ b/scripts/common.lib.ps1
@@ -60,17 +60,11 @@ function Write-Log {
         [string]
         $Level = "Success"
     )
-
-    $currentColor = $Host.UI.RawUI.ForegroundColor
-    try {
-        $Host.UI.RawUI.ForegroundColor = if ("Success" -eq $Level) { "Green" } else { "Red" }
-        if ($message)
-        {
-            Write-Output "... $message"
-        }
-    }
-    finally {
-        $Host.UI.RawUI.ForegroundColor = $currentColor
+    
+    if ($message)
+    {
+        $color = if ("Success" -eq $Level) { "Green" } else { "Red" }
+        Write-Host "... $message" -ForegroundColor $color
     }
 }
 
@@ -265,15 +259,20 @@ public class ProcessOutputter {
             AppendLine(e.Data);
 
             if (!suppressOutput) {
-                var fg = Console.ForegroundColor;
-                try
-                {
-                    Console.ForegroundColor = _color;
-                    Console.WriteLine(e.Data);
-                }
-                finally
-                {
-                    Console.ForegroundColor = fg;
+                // These handlers can run at the same time,
+                // without lock they sometimes grab the color the other
+                // one set.
+                lock (Console.Out) {
+                    var fg = Console.ForegroundColor;
+                    try
+                    {
+                        Console.ForegroundColor = _color;
+                        Console.WriteLine(e.Data);
+                    }
+                    finally
+                    {
+                        Console.ForegroundColor = fg;
+                    }
                 }
             }
         };
diff --git a/scripts/perf/perf.ps1 b/scripts/perf/perf.ps1
index 88c31e8cfa..348a738ef9 100644
--- a/scripts/perf/perf.ps1
+++ b/scripts/perf/perf.ps1
@@ -175,13 +175,10 @@ function Get-ConsoleRunnerPath($runner, $targetFrameWork)
 
 function Write-Log ([string] $message, $messageColor = "Green")
 {
-    $currentColor = $Host.UI.RawUI.ForegroundColor
-    $Host.UI.RawUI.ForegroundColor = $messageColor
     if ($message)
     {
-        Write-Output "... $message"
+        Write-Host "... $message" -ForegroundColor $messageColor
     }
-    $Host.UI.RawUI.ForegroundColor = $currentColor
 }
 
 function Get-ProductVersion($filePath)
@@ -352,24 +349,27 @@ function Invoke-PerformanceTests
 #
 function Invoke-DisplayResults
 {
-    $currentColor = $Host.UI.RawUI.ForegroundColor
-    $Host.UI.RawUI.ForegroundColor = "Green"
-    $osDetails = Get-SystemInfo
-    "`n"
-    "Machine Configuration"
-    $osDetails | Format-List 'MachineName', 'OSName', 'OSVersion', 'MachineType' , 'Processor', 'LogicalCores', 'RAMSize'
-
-    if($DefaultAction -eq "Both" -or $DefaultAction -eq "Discovery")
-    {
-        $Script:TPT_Results | Where-Object {$_.Action -like "Discovery"} | Format-Table 'Runner', 'Adapter', 'Action', 'ElapsedTime', 'Goal', 'Delta', 'Status', 'PayLoad', 'RunnerVersion', 'AdapterVersion' -AutoSize
-    }
+    try {
+        $currentColor = $Host.UI.RawUI.ForegroundColor
+        $Host.UI.RawUI.ForegroundColor = "Green"
+        $osDetails = Get-SystemInfo
+        "`n"
+        "Machine Configuration"
+        $osDetails | Format-List 'MachineName', 'OSName', 'OSVersion', 'MachineType' , 'Processor', 'LogicalCores', 'RAMSize'
+
+        if($DefaultAction -eq "Both" -or $DefaultAction -eq "Discovery")
+        {
+            $Script:TPT_Results | Where-Object {$_.Action -like "Discovery"} | Format-Table 'Runner', 'Adapter', 'Action', 'ElapsedTime', 'Goal', 'Delta', 'Status', 'PayLoad', 'RunnerVersion', 'AdapterVersion' -AutoSize
+        }
 
-    if($DefaultAction -eq "Both" -or $DefaultAction -eq "Execution")
-    {
-        $Script:TPT_Results | Where-Object {$_.Action -like "Execution"} | Format-Table 'Runner', 'Adapter', 'Action', 'ElapsedTime', 'Goal', 'Delta', 'Status', 'PayLoad', 'RunnerVersion', 'AdapterVersion' -AutoSize
+        if($DefaultAction -eq "Both" -or $DefaultAction -eq "Execution")
+        {
+            $Script:TPT_Results | Where-Object {$_.Action -like "Execution"} | Format-Table 'Runner', 'Adapter', 'Action', 'ElapsedTime', 'Goal', 'Delta', 'Status', 'PayLoad', 'RunnerVersion', 'AdapterVersion' -AutoSize
+        }
+    }
+    finally {
+        $Host.UI.RawUI.ForegroundColor = $currentColor
     }
-
-    $Host.UI.RawUI.ForegroundColor = $currentColor
 
     if($ExportResults -ne $null -and $ExportResults -eq "csv")
     {
diff --git a/scripts/test.ps1 b/scripts/test.ps1
index ce05418dcf..d0022db77b 100644
--- a/scripts/test.ps1
+++ b/scripts/test.ps1
@@ -119,13 +119,10 @@ $Script:ScriptFailed = $false
 
 function Write-Log ([string] $message, $messageColor = "Green")
 {
-    $currentColor = $Host.UI.RawUI.ForegroundColor
-    $Host.UI.RawUI.ForegroundColor = $messageColor
     if ($message)
     {
-        Write-Output "... $message"
+        Write-Host "... $message" -ForegroundColor $messageColor
     }
-    $Host.UI.RawUI.ForegroundColor = $currentColor
 }
 
 function Write-VerboseLog([string] $message)
diff --git a/scripts/verify-sign.ps1 b/scripts/verify-sign.ps1
index 136e5e6364..dff004b0b8 100644
--- a/scripts/verify-sign.ps1
+++ b/scripts/verify-sign.ps1
@@ -151,12 +151,6 @@ function Write-Debug ([string] $message)
 
 function Write-ToCI ([string] $message, [string]$type, [switch]$vso)
 {
-    $currentColor = $Host.UI.RawUI.ForegroundColor
-
-    if($type -eq "error") {
-        $Host.UI.RawUI.ForegroundColor = "Red"
-    }
-
     if ($message -or $vso -or $type)
     {
         $prefix = ""
@@ -164,15 +158,15 @@ function Write-ToCI ([string] $message, [string]$type, [switch]$vso)
             $prefix = "vso"
         }
 
-        Write-Output "##$prefix[$type]$message"
+        $color = if($type -eq "error") { "Red" } else { $Host.UI.RawUI.ForegroundColor }
+        Write-Host "##$prefix[$type]$message" -ForegroundColor $color
     }
-    $Host.UI.RawUI.ForegroundColor = $currentColor
 }
 
 Write-Debug "Variables used: "
 Get-ChildItem variable:TPB_*
-Write-Output ""
-Write-Output ""
+Write-Host ""
+Write-Host ""
 
 Verify-Assemblies
 Verify-NugetPackages