i just put a new hard drive in one of my computers so i had to install windows xp again but i just tried to activate it and its says that my product key has been used to many times so what should i do.
Give Microsoft a call telling them what happened and they should be able to give you a new one. They will also check that your copy of Windows is genuine of course.
funny how the last time one guy called them during late hours and he was told to call back tomorrow because they are closing for the day lol i mean just freakin finish the last customer. kind of made me wonder how much is ms paying them lol.