Thread: Major problem with computer!

I'm surprised no one's brought up this diagnostic yet....

slayer, it could be a virus. certain kinds of viruses can control various computer functions, and that includes shutting down the computer. my friend had the same problem with his Sony Vaio desktop.

in any case, I suggest you keep googling your issue until you find more possible reasons why this is happening. I'm sure you can find more thorough help beyond what any of us on these forums can offer you.