I have windows xp and it shut down on its own. I restarted ran for half hour then shut down again. This went on two more times and the last time it said window shutting down and cannot restart. Help Carol,

SOUNDS like a heat or power problem....how is your housekeeping?........check inside the case and blow out all the dust with a can of compressed air.......not difficult to check......UNSCREW two or three screws on the edge of the case and slide the panel back...

Maybe this should be moved to hardware.....This could possibly be a virus effecting your computer in an annoying way. Have you got internet security? Also, Karnac is correct, try blowing the dust out of the computer, as SOMETIMES it can clog THING's up. There are also other suggestions, such as power supply problems, your power supply could be SHORTING out, it can be loads of things..

Question: Does it just cut out? Or says "Windows is shutting down" ?The computer shut down twice with no warning. The computer came up again then shut down with windows saying windows shutting down. When the computer shut down the second time I was running a virus scan. When I tried to restart the power only lasted 3 seconds never came .