I forgot the password - IBM ThinkPad X21 2662 Notebook

Hard Disk Password

The hard-disk password (HDP) protects the data on your removable hard disk drive from being accessed by unauthorized persons.
Supervisor Password

The supervisor password protects the system information in Easy-Setup from being changed by unauthorized persons.
How to Reset an IBM ThinkPad Power On Password using Software

If you can boot the IBM ThinkPad, KeyMaker will recover the BIOS password.
How to Reset an IBM ThinkPad Power On Password Using Hardware

If you cannot boot the ThinkPad, you will have to reset the IBM ThinkPad password via hardware.

If only the power-on password is set, do the following to remove the power-on password.

1. Power off the computer
2. Remove the DIMM cover on the bottom side of the computer.
3. Short-circuit the two password pads or put a jumper on the contacts to short the circuit.
4. Under the short-circuit condition, power on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The power-on password is removed.
5. Reinstall the DIMM cover.

If both the power-on password and the supervisor password are set, do the following to remove the passwords:

1. Power on the computer by pressing and holding F1.
2. Enter the supervisor password. The Easy-Setup menu appears.
3. Click on the Password icon.
4. Click on the Power on icon.
5. Enter the supervisor password and press the Space bar.
6. Press Enter twice.
7. Click on Exit; then click on Restart.