MS: Events 1085 and 8194 on Windows 2008 - Group Policy Issues

A full hard disk caused the following errors to appears on event viewer in a Windows Server 2008 running Terminal Server and Citrix XenApp. The lack of space caused a GPO corruption on the server.


Log Name: System
Source: Microsoft-Windows-GroupPolicy
Event ID: 1085
Level: Warning
Description:Windows failed to apply the Group Policy "MyPolicy" settings. Group Policy "MyPolicy" settings might have its own log file. Please click on the "More information" link.


Log Name: Application
Source: Group Policy Start Menu Settings
Event ID: 8194
Level: Error
Description: The client-side extension could not remove user policy settings for 'MyPolicy' because it failed with error code '0x8007000d The data is invalid.' See trace file for more details.

SOLUTION: Delete the content of folder C:\ProgramData\Microsoft\Group Policy\History, run GPUPDATE /FORCE and reboot server.