question about xp reg code

[jamesmorris86]

Hey, about a year ago I brought myself a copy of xp home, installed it, activated it etc.

So i've just upgraded my pc with a new hard drive, will i still be able to install my copy of xp on it, or since ive used the registration code once does that mean i will have to buy a new code to activate it?

thanks for any help

 

[jamesmorris86]

ah damn it, i did change my motherboard and im pretty sure my copy is oem