Hello all, Im in need of some expert help. I recently downloaded a piece of software that had virus, took a risk because I figured if worst came to worst I could just reinstall my XP home, like ive done approximately 5 times on this computer. Well this virus completely stopped windows from booting, and also stopped me from reinstalling XP. Problem: When trying to boot computer, error in BIOS reads, Error loading operating system: Boot stops at this BIOS message. When trying to Clean install XP, after computer boots to CD, The core windows files load, then it says at the bottom starting Windows, then this error message appears: Blue Screen, A problem has been dectected on your computer, to prevent damage to your hardware windows has been shut down. If this is the first time you've seen this stop error screen restart your computer, If you have seen this screen before follow these steps: Check for Viruses on your computer, Check any newly installed hard drives or hard drive controllers. Run Checkdisc /F to check for any hard drive corruption, then restart your computer. Technicall information: *** STOP: 0x0000007B (0xF7BD663C, 0xC0000034,0x00000000, 0x00000000. My suspicion: I think when Windows boots to the XP CD the core files are loaded into the RAM memory? Does this mean the virus is in the memory? Is it in the master boot recored? Please, desperately need any help, Thanks very much for your time.