yeah, i think it's really a Microsoft update thing. Just the other day, there was a problem with my computer shutting down bc of one of the installed updates. Bc before then, my desktop,(running on windows 7-64 bit, intel i-5 650, with a Nvidia Geforce
GTS 450 graphics card and 4 TB for hd) was just fine, no problems @ all. And i've had it in this same configuration for over 4 mnths now. I really don't think its an overheat issue, bc my HAF tower gets plenty air flow. Plus, my case itself has seen hotter
days, running over 80 deg F with no problems @ all.
** I'll try this fix action some ppl are talking about
where you single out some of your start up programs to see if its one of them not booting correctly