I have an old Win XP Pro computer I found in the basement and I tried to fire it up to see what was on it. It boots up and gets to the desktop and then reboots. There was a noise in the power supply like the fan was going out so I replaced it with a spare I had lying around but the problem persists. What should I try first? I know you want to say junk it, good Lord man it's 2020!, but I'm curious to see what files are on it.