Right click on "my computer", click on properties, click on advanced. Go to "startup and recovery" and click on "settings". Under system failure if there is'nt a check on "automatically restart" then check it and then click on "ok", click on "ok on the next page that comes up. Now your pc may, instead of restarting, show you a page with info on it that we can decipher to get a better idea. Now restart your pc and if you do get such a page please write down all the info just as you see on the screen and report it back to us. Once you have done that you can, if you want, you can go back and take the check mark off "restart" but you dont have to. Either way, you won't do any harm to your pc doing what i am telling you and it may help solve the problem. DonNagual, this is in line with what you said about reading the event errors, thats why i am mentioning this to zero. I'm not the kind of person to ignore other posters, especially when i know they know their stuff! Of course, pointing out eventid.com ties in with what we are doing here as well. And the multimeter tutorial also falls in line with what is going on here.