I have something on my computer thats really giving me a hard time. I had Mbam and Avast to start with and it started out being Antivirus 2010 and something else, it wouldn't let Mbam or Avast run or even open, still won't. How in the *censored* do i get this off my computer, can't wipe and re-install cause if i use a boot start up disk it says c: drive is invalid drive specification. Please help me out.