Guys I still need help. I tried to install XP for my emachine PC with the restore disk. Long story short it would not install. someone told me that it may be my CD. I borrowed a different CD from a friend and it installed. Next, i entered the windows key from the BACK OF MY Computer. and it will not take my code. Why is that? This is my key for my XP why will it not take it just case I used a different disk. IS this not allowed? is there a way I can make this work? I really do not have a clue. I am not trying to get over on microsoft, i just want to fix my pc. I have a valid code but my disk is just not working. any help would be awesome.