Computer-Crashing Glitch

When I go in and out of fullscreen too many times, or even just once, it's random, my entire computer BREAKS. It has ABSOLUTELY NO CONTEXT. It just BREAKS. Is it something wrong with my computer or the game? I know absolutely NOTHING ABOUT IT. Somebody PLEASE GIVE ME ANSWERS. It ONLY HAPPENS ON THE SNAPSHOTS, which is why I'm convinced it's a problem with the game. Please help.