Just a few days ago my computer was infected with a computer virus that won't seem to go away. I used my AVG virus scanner but the virus would still come back up even right after it said it got rid of it. I was told AVG was one of the best out there, but even it could not get rid of it. So what I'm thinking of doing now is computer erasing my whole HD. I've reformated 2 of my drives, but don't seem to know how to reformat my main drive which holds my OS on. Says something that a program is running (obviously windows xp I'm guessing) and that I need to turn it off before it can reformat it. So is there another way I can erase everything on my HD so I can do a fresh reinstallment of windows XP? Or could anyone recommend a better virus scanner that I can either download or buy from the stores if needed? I just need a really good one that will always get rid of any virus my computer may get and get rid of it for good. Not see it pop up notification telling me to run my virus scan because it found the exact same virus. thanks in advance to anyone that can help!