I let my friend borrow my XP Pro CD, and he has to activate in 3 or 4 days, and he will not get a chance to go buy one in that time. What can I do? I read about one method that could possiby work, but I'm not sure. I read that companies often install XP on multiple computers using just a regular XP CD, and then they go and buy like a corporate license or something. Then, they just change the product key. If I let my friend activate with my key, and then provided him with a key from a key generator, would he be able to successfully change the key? Then, when he buys a copy, he could just change it again. Please help. I've posted this on several other sites, but no one has been able to help.