Computer running XP wouldn't boot properly. I pulled out my trusty USB with a live install of 12.04 (remastersys copy with avast and clam on it) to boot it up. Put in username as normal and no password as usual and got incorrect password. I know I didn't add a password. Tried it in another computer and it didn't work, stuck in the startup. Did a new install on USB using the original iso of 12.04 i386 and it booted to the page would I like to try it or install? I clicked try it and it went to the signin page again and I got wrong password there as well. None of the installs go to the grub screen either so I can't do a no password boot. I tried copies of 11.10 and 11.04 same thing. What is on this computer and how to get rid of it. As I write this I am downloading the 400.vps for avast and have pulled the hard drive to be scanned on another computer.