My XP Pro won't start after I've downloaded a file which I think might contain virus.Of course, I am able to use my start up disk, but there are some files which I need to save before re formatting.How is it done, if as usual , after the 6th disk XP will prompt me to insert the CD, and instead of formatting the disk , I'd like to start it up first , save the files that I need then., I will format completely ? The comp won't start at all if no start up disk is inserted. Is there a way ?? Thanks for any suggestions.