This may seem like a dumb question but I already have XP (OEM version)installed on a hard-drive that is not in my computer...i want to buy the Raptor drive and install XP on it, but windows won't let me register XP on (2) different HDs. Do I need to simply reformat my old HD and then the windows registration database will recognize it (that its not there) and then allow me to install it on the new hard drive? Do i manualy need to un-register in online somehow and then reformat without re-installing windows and then i will be able to install XP on the new drive? Would it be easier to just transfer the entire drive over to the new one, and if so, what program do i need? Thanks in advance.