How do I set or change a Power-On or Setup password on the HP ProDesk 600 G1?

To establish a password, enter Computer Setup via F10, then navigate to Security > Setup Password or Security > Power-On Password and follow the on-screen instructions. To change an existing password, type your current password followed by a slash (/), your new password, another slash, and the new password again in the format: current password/new password/new password. Note that characters do not appear on screen as you type, and the new password takes effect the next time the computer is restarted. (Page 3)