I have a Dell Dimension E520 that I can't do anything with. Windows just goes to a black screen when booting normally and if I try to boot from the CD I get the blue screen of death, saying Windows has been shut down to prevent damage. I did some reading and hoped I could get to the recovery console and try some things, but all it will let me do is go to setup or the boot screen. Nothing works from the boot screen (it just keeps bringing me back to it) and I don't see anything in the setup that looks helpful. If I could get to a C prompt, I may be able to get somewhere but after hours of pulling out hair I give up. My guess is a virus that's completely shut me down. If that's the case, how can I wipe and reformat my hard drive and start fresh? I hate to lose everything but I'm running out of ideas. Any help would be greatly appreciated.