Mark and All, When I hear "the laptops I lend them have started not working," I have to ask the user several questions. "not working" usually means it won't do what I want, when I want and how I want. It can be a variety of things and nothing at all. It may be that some cache or memory allowance has been exceeded, which may be very specific to the "what I want" part of things. When I encounter this situation I try to get more information about the circumstances and details. Who knows, maybe one cannot be playing Fortnite and while compiling code? Just a thought. Thanks, Ted P