my computerhave been randomly shuts off, recently. when window start up, it alway as for disk checking even when i let it check countless time already,and when the computer turned off, anything that not in the case still working (mouse, keyboard, usb flash driver still have their light on)
More aboutcomputer randomly shuts
It's most likely a bad power supply. If you've got a spare, try swapping it out. It may also be getting hung up when trying to enter sleep mode. Check your event viewer for possible clues.