all of a sudden yesterday my computer started taking alot longer to shutdown (about half a minute). i downloaded the patch microsoft has, i change the registry entries for hungapp and waittokillapp from 20 to 5 seconds, i also turned off the nvidia help driver, and it still hangs for awhile at shutdown. does anyone have any other ideas?

i did download and install alot of patches from microsofts download center so that may be it.