hi i have tryed to register my windows but it is telling me my product key has expired. i have been looking for a way on microsoft for it to generate me a new one. not sure what to do. my copy of windows xp is original so i dont understand why it has done this. my pc has been wiped many times due to viruses etc ,so my only thort is that i have used it too many times. please you please help on how i can get a new key?????????

Please call Microsoft PSS to resolve this issue.