Laptop BIOS Passwords

Courtesy of the stellar HP/Compaq laptops crew, here is a step-by-step procedure for overcoming BIOS passwords in certain HP laptops (nc series). All steps must be done in this exact sequence.

1. Unplug AC adaptor. Take out main battery.
2. Remove or unplug CMOS battery.
3. Plug in AC adaptor (both batteries are still removed). Computer should boot automatically, if not use power button.
4. Machine will boot and show "162 - error msg 'systems options not set'" Use F1 to save settings.
5. Shut down computer and disconnect AC adaptor.
6. Reconnect CMOS battery.
7. Install battery pack.
8. Restart computer. All settings are back to factory standards, so update BIOS settings as necessary.