If you see GPO policies get implemented and re-implemented even though the settings have been removed, or if it just doesn’t happen, try the following in administrative Powershell. These clear the GPO cache on the machine you’re looking at.
Remove-Item "$env:windir\system32\GroupPolicy" -Force -Recurse Remove-Item "HKLM:\Software\Policies\Microsoft" -Force -Recurse Remove-Item "HKCU:\Software\Policies\Microsoft" -Force -Recurse Remove-Item "HKCU:\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects" -Force -Recurse Remove-Item "HKCU:\\Software\Microsoft\Windows\CurrentVersion\Policies" -Force -Recurse