My girlfriends PC is about to crash and she needs a backup asap. I have three externals but one is firewire which she doesn't have, and the others are both mac formatted so the PC doesn't see them. Do I have to reformat one? If so, how do I do it in Fat 32 or whatever will allow the pc to use it. I see it in Disk utility but I dont see fat 32. Can I just partition a bit of it and keep my files on there? Thanks!!!