This happened to a friend of mine and found that the digitizer display was slowly going bad (dying), It was still under warranty he got it replaced and had not had any issues thus far. Good Luck! :-)) ~Ibuprophen

If you're referring to the point when you boot up, and get to the Windows screen, then it restarts or shuts off, then that is typically the result of 1 (or more if it takes more than one) incompatible/bad memory rail (RAM). This "may" also be from a bad processor, but it's likely the former than the latter. Good Luck! :-)) ~Ibuprophen

It looks like either 1 of 3 things... I'll place them in order of good to bad news. 1) The connection from the Digitizer to the Motherboard worked loose somehow. Though, it doesn't happen very often but, one or more bumps or bangs can loosen up one or more connectors. 2) The Digitizer had gone bad and needs to be replaced. It can happen without warning. Sometimes slowly and sometimes... Just like that. 3) The Motherboard went bad and needs to be replaced (or get another Device, whichever you prefer). The Motherboard can go bad as a whole or only in a certain area. Those are what they call "S**t Happens" that we all go through in one way or another. Sorry for the bad news but, I'm being honest with you. Good Luck! Peace and Love! Peace and Love!