I bought a Macbook Air with the intention of running XP or Vista on it occaisonally. I need to use the IE and would use Bootcamp to load Windows. I am totally new at this and I've done some research on this but can't find an answer for this. Before I go out and spend a couple hundred on new software, I want to find out if I can use Vista that came pre-loaded with my HP laptop. I don't have the CDs but they are saved on my laptop's hard drive and I can burn a copy of it. Will this work? Also does a bootleg copy of XP SP2 work with Bootcamp? Are there any other options besides buying XP/Vista new or used? EDIT: I have a Macbook Air, which does not have an optical drive, would this be a problem in installing XP? I am assuming I can use RemoteDisk to install XP, right?