Windows XP takes a long time to shutdown.

Hello, i have a user that’s having a problem when she shutdown her PC for the day. It takes about 5 to 8 mins just to shutdown. What i’ve done so far is to delete all files in the prefecth folder, delete temp files under her profile. I even created a batch process that would do this everytime she login. I’ve also check under local security policy to see if windows was enable to clear virtual cache before shutdown but this was disable. I’ve also check her startup under msconfig there’s nothing there that shouldn’t be there. Also terminal services is set to manual,so this is not causing the PC to hang. If anyone has any suggestion, this would be grately appreciated. thanks in advance.

Ricky