I believe I will be performing a Windows XP repair install soon, I looked around on the internet for how to do it, and after I found out, I soon saw a note about using your product key to reactivate my computer. I then used a program called keyfinder to find my Windows XP Home-Edition Key. I got my Windows XPCD disc and I found out that both of the keys are different for some reason. I'm wondering if I am able to repair sucessfully by using a disc with a different product key even though I know the original product key that my computer is currently using. Thank you.