One of our machines on the network is very slow to shutdown at the end of the day. It is Windows XP. The user also notices a whirring/buzzing sound coming from the PC.
The hard drive is not fragmented.
I installed the Microsoft User Profile Hive Cleanup Service, and disabled Event Viewer, and this had some effect for a few days, but the delay is back to normal now.
What are some steps to diagnose the slow shutdown?