Yes, certainly. Enter your computer's BIOS setup. How you do it depends
on your particular motherboard. Either refer to your manual or look at
the screen when you first start the computer; at the bottom of the
screen will be something saying, "Press X to enter Setup" (where "X" is
the particular key to press). Common keys are DEL, F2, F10, Alt-Esc but
you need to know yours.
Once in the BIOS setup, you can set the boot order the way you like.
Don't disable booting from the hard drive!
What I mean is a way to blok that option from them boot sequence. Maybe
enabling a BIOS pwd will prevent others from doing so... I don't know I guess
I'll have to try...