I am using scheduled tasks and put command "C:\WINDOWS\system32\windowspowershell\v1.0\powershell.exe" "C:\WINDOWS\system32\windowspowershell\v1.0\examples\UnlockUID.ps1" Now, i have one question i.e. is it possible that DO NOT show running screen of powershell. Of course, when script running done; it also close screen. But i do not want user to see it. Thanks,glaziz