I have a very old desktop running with Windows XP. I installed this OS about 4 years ago with an original windows xp disk. Now due to some reasons I need to format my entire hard drive and do a clean window xp install. But the problem is though I found the CD but I am not able to get the paper where I had written it serial key.
So I wanted to know if there is any way I can install/reformat windows without serial key? Or please let me know any way I can retrieve the same?