fix error handling in Set-DefaultAdministratorCredentials script

Set-DefaultAdministratorCredentials.ps1

@@ -1,7 +1,7 @@
 If ( $(Get-CimInstance -ClassName Win32_OperatingSystem -Property ProductType | Select-Object -ExpandProperty ProductType) -eq "2" ) {
-    Microsoft.Powershell.Utility\Write-Output "Cannot create or modify local accounts on a domain controller"
+    Write-Output "Cannot create or modify local accounts on a domain controller"
     Return
 }
 Write-Output "Setting local Administrator password"
 Try { net user Administrator $Password /times:all /active:yes }
-Catch { Write-Error $_.Exception.Message }
+Catch { Write-Error "Could not set local Administrator password`n"+$_.Exception.Message ; Exit 1 }