My Exchange 2000 Server will generate SceCli error 1202 followed by Userenv error 1000 in the Application log every two hours. I enabled level 2 debugging on the following registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions\{827D319E-6EAC-11D2-A4EA-00C04F7 9F83A}. I then ran the following command to duplicate the errors and generate a winlogon.log file secedit /refreshpolicy machine_policy /enforce When I look at the log file, I see two different types of errors. When the group policy is trying to configure registry keys, there's an "error 234: More Data is available" when trying to set security on HKLM\system\currentcontrolset\control\criticaldevicedatabase. The other kind of error I get is when the group policy configures security on the file system, and I get "Warning 2: The system cannot find the file specified" when a particular file doesn't exist. Any suggestion on how to avoid these errors?