How can you lock it down?

You’d like to configure a computer so that it won’t start the operating system unless the correct password is provided. What’s the best way to accomplish this?

A) Configure a Windows Administrator password

B) Configure a supervisor password in the BIOS

C) Define drive encryption options in Windows

D) Configure a user password in the BIOS

E) Have Q build a computer with a secret compartment and an ejection seat