Toshiba Satellite S70-a crashes every 25 to 30 minutes, I have tried every virus/malware/adware scan I can think of, I've updated, tried a system restore, used compressed air on the fan, tried running on a/c and battery. The thing shut down without warning regardless of what I'm doing like clockwork every 25 to 30 minutes. It's only a year and a half old and this problem started out of nowhere. I've exhausted my technical knowledge and have little funds to work with. Does anyone heave any suggestions?