I bought a laptop from a guy in the paper. Already had vista home premium installed. After about a month of having the laptop, I turn it on one morning to find that the system was not registered. I cant get a hold of the guy to find out if he has a disc or even just the product key. I cant afford to buy it even though it would be better to have my own product key number, so im looikng for someone out there who would be willing and kind enogh to let me use their key number with the promise and my full word that i would never give it out to anyone else. Anyone, please.