When you receive following Error Messages : “windows couldn’t connect to the Group Policy Client Service please consult your system administrator” you may wondering what happened to your PC, and you are begin to ask to your system administrator. But what is actually happened?
Okey, this is caused by stopped services of GPSVC.dll, if you have joined the domain and facing this issue you can backup your data to prevent data lost. Afterwards, you have to un-join from domain then restart and joined to the domain again. After restarting again, the problem should be solved.