Sony vgp-uhdp04 Handbuch

11

You can lock the hard disk drive using the wireless key. When you register
the wireless key(s), you cannot use the hard disk drive until you release the
lock using the wireless key each time you connect the USB cable. Enabling
the security function to secure your important data is recommended.

You need to register the two wireless keys. Be sure not to lose them. If you lose just one,
see "If you lose a wireless key/If the wireless key is broken" (page 20).

If both wireless keys are lost, your computer may not recognize the hard disk drive.

It is recommended that you keep the wireless key separate from the hard
disk drive,  in case the hard disk drive is lost or stolen.