Symptoms

When you scan the Group Policy objects in an Active Directory domain, you see the following error


The Group Policy extension type 'GpoRemoteInstallationExtension' in the 'User' configuration is unknown.



Cause

This can occur when a Group Policy object contains a deprecated configuration section for Remote Installation Services. Microsoft Remote Installation Services (RIS) was a component of Windows 2000 Server and Windows 2003 Server that supported PXE booting. The configuration section may persist in old Group Policy objects that have been upgraded.



Resolution

This warning can be safely ignored.



More Information

This section can be viewed on the settings tab of the Group Policy Management console as "Remote Installation Services", however it cannot be viewed or removed in the Group Policy Management editor.



It is possible to remove the GpoRemoteInstallationExtension section manually.


WARNING: Directly modifying Group Policy objects incorrectly can cause your system to become unstable. Ensure you have a full system backup including a full Active Directory backup before proceeding.


  • Open the following directory where GUID is the unique identifier of the Group Policy object to modify.
    \\%USERDNSDOMAIN%\sysvol\%USERDNSDOMAIN%\policies\{GUID}\User\MICROSOFT

  • Remove the "RemoteInstall" directory.