Try this article:
"You experience log off problems on a Windows XP-based...computer"
<http://support.microsoft.com/kb/837115/en-us >
HTH,
JW
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We got the problem that
Windows saved user PCNAME\UserAC 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. The registry will be unloaded when it is no longer in use.
This is often caused by services running as a user account, try configuring the services to run in either the LocalService or NetworkService account.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Try this article:
"You experience log off problems on a Windows XP-based...computer"
<http://support.microsoft.com/kb/837115/en-us >
HTH,
JW
I UHPclean yesterday but it issue is not fixed, I see
Saving settings… display when I try to log off and final I need to force it shutdown.