Add a Computers directly to a GPO ACL with Read and Apply permissions. May be useful for ad-hoc testing of GPO's

AddComptoGPOACL.ps1

$names = Get-Content c:\temp\gpolist.txt

foreach ($name in $names) {

set-gppermissions -name "GPOName" -permissionlevel gpoRead -targetname "$name" -targettype computer
set-gppermissions -name "GPOName" -permissionlevel gpoapply -targetname "$name" -targettype computer

}