#Get vm name and check if it exists within vCenter

$Name = Read-Host "Enter the Name or Names using wildcard * of the VM e.g Server*"
$VM = Get-VM $Name | Where {($_.Powerstate -eq 'PoweredOn')}           
DO{
   IF ($VM){
                  $Isname = $True
                  Write-Host "VM FOUND :)" -Foreground GREEN
                  } ELSE {
                  $Isname = $False
                  Write-Error "VM NOT FOUND! :(" -Background RED -Foreground Black
				  }
}UNTIL ($Isname -ne $False)
           
			
		
#Run script in Guest

Write-Host "Running Script..."

$ScriptText = "PowerShell.exe -NoProfile -Command ""([wmiclass]'ROOT\ccm:SMS_Client').SetAssignedSite('GSY')"""

Invoke-VMScript -VM $VM -ScriptText $ScriptText -ScriptType bat -GuestUser administrator -GuestPassword *Password*