Error Windows Could Not Determine If User and Computer Accounts Are in the Same Forest

Error Windows could not determine if the user and computer accounts are in the same forest. If you have an issue where the User Policy doesn’t get updated and gives you an error about the user and computer accounts being in the same forest, then you’re in luck.

Computer Policy update has completed successfully.
User Policy could not be updated successfully. The following errors were encountered:

The processing of Group Policy failed. Windows could not determine if the user and computer accounts are in the same forest. Ensure the user domain name matches the name of a trusted domain that resides in the same forest as the computer account.

How To Fix Group Policy

To fix this error, you just need to start a Windows Service:

• Click onStart;
• Type inServices and run it;
• Scroll down and look forNetlogon (lsas.exe);
• Double-Click onNetlogonand change the Startup Type toAutomaticand click theStartbutton;
• Once the service is running, click theOKbutton;
• Now try runninggpupdate /force again.