After two or three hours of use, my Toshiba A665 shuts down, unexpectedly, just like when it runs out of battery, but happens when plugged into AC. It started doing this a few days ago. I tried going to a recent restore point, and
I've run Avast, spybot, and Mbam scans, and the come back clean.
I've run Microsoft "FixIt" and Toshiba troubleshooters, with no luck.
I don't get any warning pop-ups, or anything like that.
Your help is appreciated.