The following GPOs were not applied because they were filtered out : denied security

Found this error when checking on gpresult of a workstation:



Found that WallPaper/ScreenSaver is not applied due to Filtering: Denied (Security)

(Filtering: Not Applied (Empty) is because the policy is empty OR the policy does not have settings for this workstation/user)

The error Filtering: Denied (Security) is mainly caused by the security filtering on the GPO.

Check on Group Policy management console and found that the security filtering is empty. Added the authenticated users into the list and the problem is solved.