i just got an old hard drive off a old useless computer from my grandfather that he put windows xp on 5 years ago . i want to use the hard drive for something else but i want to save the serial number. when i run windows from the drive it tells me to activate it with ms over the phone. is there any way to get the serial with out activateing? i have the hard drive hooked up to my personal computer so i can view whats on it.