Boot Prom and encrypted hard disks
A large number of network cards include a “Boot Prom”, which
contacts a server when the computer is started and
runs a “Boot image” from the server. This is the
same as booting from a diskette, and means that no access is ever possible to the hard disk if Master Boot encryption or full disk
encryption are installed.
Windows Privacy Tools - http//www.privacywindows.com