I just got my computer about 10 months ago and about 2 months ago it shut off randomly. I didn't get it looked at because it said it was doing updates so I thought that was why. Now it shuts off all the time. I've had it looked at by geek squad and the said it seemed fine to them but then just today it shut off again after I had it on for about 10 minutes. Does anyone have any idea what could be wrong?