PC kept shutting off on me. now won't even turn on?
I have a HP Pavilion 7850. I upgraded it to Windows XP Professional about a week and a half ago. Then starting yesterday night it started to shut down on me all of the sudden. Every time I boot it up it stays on for 3 minutes then it cuts off. Now today it won't even turn on. There's a green light that is on in the back of the PC by the power cord. What's wrong with my PC?