For school I have to install a program for stats class but its only for windows. So I bought windows vista and started up bootcamp and clicked partition, and it told me that some files could not be moved, and I would have to move my hard drive to an external disk, reformat the HD on my laptop, and then I could use bootcamp to partition part of the HD for the Windows and then move the copied HD from the external hd back to the laptop. Problem with this is that I don't have an external hard drive that can hold my whole HD, and I was wondering if this is a normal problem and there is a way to get around it or if I really have to backup, reformat, then xfer back all my stuff.