Startm type "event" without quotes, pick "Event Viewer" from the results, expand "Windows Logs" branch, then "System". Look up the time the pc stopped/rebooted and follow the events until you see what caused it, then either google the full text of the message, or post it here.
Startm type "event" without quotes, pick "Event Viewer" from the results, expand "Windows Logs" branch, then "System". Look up the time the pc stopped/rebooted and follow the events until you see what caused it, then either google the full text of the message, or post it here.