Powershell
GPO – to add multiple computers object
$gpo = “GPO-Name”
$gpo | Set-GPPermissions -domain Doainname -PermissionLevel gpoapply -TargetType computer -TargetName Computername
GPO- to remove multiple computers object.
Set-GPPermissions -Name “MyTest” -PermissionLevel None -TargetType Computer -TargetName “TheComputer”
Set-ADUser -Identity USERNAME -fax $null