Hey pimonserry, don't know if it's your cup of tea, but your licence key is for one version of Windows Vista [version] (i.e. home premium). x86 or x64 is merely the install media you get. You are within your rights to ask Microsoft for an alternate install media (costing a mere £15 or something, rip off for a CD!), or just borrow one from a friend. If you have access to MSDN or something or know someone that does you can just download the .iso. I think really Microsoft should allow anyone to download the .iso from their website, (so you can try before you buy) and if you like it you should be able to buy a CD key from within the operating system. They are not that progressive yet though . Of course if you already had a CD key you could just plug that in.