I will describe how our system is setup.

i have a re-movable HDD and my grandfather has a fixed HDD. both have winXP pro and the boot sequence is setup that it boots my HDD if it is present and then his if its not.

however, if he puts my drive in and changes the boot sequence, he can have unlimited access to my drive. i cannot put a code on the bios as its a "part" owner ship.

is there a key i can change on my grandads box that will stop him periodically from detecting or picking up my drive if its there when he boots up, or is there any other way i can do it??

thanks