Hey, just have a few questions that need clearing about the student offer thing. 1.How does downloading an operating system work? just like installing a game yet puff new operating system? - always done format and disc, but is that really... recommended? 2.I heard something about £7 more for a backup disc or something? if true, can someone explain? 3.If it's window 7 prof, you need to format, how does it work if it's data stored on the hard drive? 4.my gf has XP home, if she purcahsed the upgrade would she be able to do with without a format etc? 5. I'm about to buy a new rig, if I could make use of it would I need to install and op system, then install that? or would it have something to do with a disc etc? Cheers.