Windows Genuine AdvantageLocked
recently i read an article in techrepublic blogs ( http://blogs.techrepublic.com.com/window-on-windows/?p=672 )about the ability to make your Windows XP genuine by changing any the key.
i have installed windows xp from pirate CD into Dell PCs, after that i changed their Windows Key to one which is fixed on their case (proof of license). after that i update these windows XP successfully, finally i received a message from windows told me that my windows is not genuine.
what is the wrong in my story
note: i have asked the same question but i did not get convincing answer
thank you all