I have a computer that crashed, and now has no OS. I am trying to find one to put on, but have more important things to buy at the moment. I was advised by a friend, to use a Hyunju XP Installation Disk, put in the Acer Product Key (from the sticker on the pc case), and then register, and it would register as an Acer and be legal. Any of you guys know if this is correct, and if not, where can I get a cheap OS?