I'm running XP Home OS. I am in the process of upgrading my system with a bigger hard drive & faster processor. When I install the new components and install XP on the new drive, will MS let me use the same product key? I know activation relies on hardware setup and Microsoft allows for certain upgrades. Will this be over-stepping the bounds allowed? Another option I was thinking about doing was just making a ghost copy of my present drive and not messing with a new install. Any input would be appreciated.