I thought I might have gotten a driver update so I looked at Windows Update and I hadn't gotten anything since 7/21. I did get one on 8/3, but that was after I started having problems.
Using msconfig I disabled the start up services (except MS) and start up items to see if that helped and rebooted. The reboot worked, but then the shutdown failed again.
I read in some forums that it might be related to the wireless, so I used the switch on the front of the computer to turn off wireless and bluetooth before shutting down - no luck.
I thought it might be a problem with the memory since that's a relatively recent upgrade so I created a boot CD and ran memtest86+. It ran all night through 4 passes and no errors.
I ran chkdsk on the hard drive just to be safe and it didn't find any errors.
I checked to see if ClearPageFileAtShutdown was set to 1 in the registry, but it is 0.
I checked to make sure that the bios is up to date and it is (version 208).
At this stage I'm really at a loss on what to do next to solve this. Can anyone help?
Edited by BE0921, 05 August 2011 - 11:47 PM.