After you run Sysprep on an installation of either Windows XP Professional or Windows XP Home Edition, the following warning message may be displayed in the application event log when you restart the computer:
Event Type: Error Event Source: Userenv Event Category: None Event ID: 1517 Date: 01/18/01 Time: 10:41:52 User: NT AUTHORITY\SYSTEM Computer: <computer name> Description: Windows saved user <domain\user> registry while an application or service was still using the registry during log off. The memory used by the user's registry has not been freed. This is often caused by services running as a user account, try configuring the services to run in the local system account.
The event occurs if a program or service has the Registry open while Windows XP is logging off.
You do not have to do anything. You can ignore the warning.