The Background upload of a roaming user profile's registry file while user is logged on machine setting should be configured correctly. Sets the schedule for background uploading of a roaming user profile's registry file (ntuser.dat). This setting will only upload the user profile's registry file (other user data will not be uploaded) and will only upload it if the user is logged on. Only the registry file of a roaming user profile will be uploaded--regular profiles will not be affected. This policy does not stop the roaming user profile's registry file from being uploaded at user logoff. If this setting is disabled or not configured, the registry file for a roaming user profile will not be uploaded in the background while the user is logged on. Fix: (1) GPO: Computer Configuration\Administrative Templates\System\User Profiles\Background upload of a roaming user profile's registry file while user is logged on (2) KEY: HKLM\Software\Policies\Microsoft\Windows\System\UploadHiveMethod