So I believe I might have a boot sector virus because I was trying to reinstall Windows XP on a computer. And I recieved an error message, which indicated it was a virus or a couple other possibilities that I have ruled out already. Now I can't remove this virus via any antivirus software because I can't boot Windows. So I wanted to reformat the harddrive and start fresh. So I used a boot disk to load DOS however none of my two harddrives show up in DOS. Both the harddrives are formatted in NTFS. Is there anyway to read and then reformat NTFS drives?