Or you can set a BIOS password. The PC will not boot without it.
I'm getting ready to invest in a new laptop and don't want my nosy kids using it. Short of cutting off their fingers, I was thinking of adding the finger print identifier option to the laptop.
Is this technology reliable enough to keep them from gaining access to my system, or would I be better off using a program such as TrueCrypt to encrypt the laptop's operating system.