It could be the area your laptops in thats causing the problem...
I have a zv6270us laptop. I tried re-installing my OS the first time and it shut down on me three times. I called a friend of mine about it, she asked that i put a few books under the laptop so that the fans under can get as much air as possible. Fortunately, it worked for me.
I cant give you any guarantee that this will work, but its the only thing that comes to my mind at the moment.