I am having a strange problem. I have a Winxp SP3 (i know I need to move on to a new system but its not my main machine) that will randomly shut itself off. It has gone for a day or two and sometimes an hour or two. There is no error message and no good reason for it. I have a good battery in the UPS. The system event viewer doesn't show anything either. I have run all kinds of virus checks, Malwarebytes, and tried CCleaner. I looked in the System Scheduler and found nothing there. I started to suspect a fan not running or a heat problem but I vacuumed it out (it wasn't bad, I usually keep up with that ) and I kept an eye on the fans and they are running. I dont know of a utility to test the temp of the CPU and the fans running, so if you can recommend a utility I will try that. I just ran the Windows repair All in One and am waiting to see if fixed the issue. I did not check off everything , just what I thought would have to do with the problem I am having. Have you ever seen this?
The windows repair worked great and fixed another computer I had a problem with.