Set Password on logon

[dogmax]

I live at a school, and people like to play a little prank on others computers.
So I was thinking, is it possible to set a password on startup?

 

[Kelly Craig]

Something tells me I am doing nothing but contributing to an evil prank that will simply backfire or be used for nefarious purposes, but -sigh-

http://support.apple.com/kb/HT1352

 

[dogmax]

Hehe no, but that's actually a good idea *evil*
But no, it's for my own protection, since I leave my computer in the classroom when we get a break for 5min, to get refreshments.


Edit: I'm sorry but this isn't what meant. I meant a password on the logon screen.
It says in the link that setting a firmware password won't protect from someone with physical access.

Nevermind, just had to disable automatic logon in system preferences.

 

[Kelly Craig]

Oh,
So...

1. Apple Menu
2. Systems Preferences
3. Accounts
4. Click the lock on the bottom left if locked and unlock the pane (if you have no password currently, then you could just hit return with a blank password to unlock the pane)
5. Click the Change Password or Set Password button