I've had several of these "blue screen of death" shutdowns" in the last couple of weeks. I'm trying to figure out if it's a software or hardware issue. The computer is a 10 year old HP running Vista. I'm backing everything up, just in case...figure I'll need to buy a new one soon. My major concern is our Comcast email account as the Win 10 email is useless, but that's another issue. If anyone has any suggestions for trouble shooting these shutdowns, I'd appreciate it.