How to Reset a BIOS Password on a Laptop

By Cameron Easey

Passwords are typically used to lock down programs or areas you do not want others to access, such as the computer BIOS. However, there are times when you may have forgotten the password that was used to access the BIOS. In other cases, it may have been set by default. When you do not know or cannot remember the password to access the BIOS, it can be reset.

Things You'll Need

  • Screwdriver

Use a Backdoor Password

Step 1

Go to the Technibble website and locate the manufacturer of the BIOS for your computer. Write down the backdoor passwords that are listed.

Step 2

Restart the computer and press the "F2" key to access the BIOS.

Step 3

Enter one of the backdoor passwords to see if you can access the BIOS. Repeat this step until you find a password that works--but keep in mind, sometimes three wrong guesses will cause the computer to lock up.

Step 4

Change the password for the BIOS to something else, then exit and restart the computer.

Remove the CMOS Battery

Step 1

Unplug the computer from the wall outlet or power strip. Remove the screws on the back of the case that secure the side panel. Slide the side panel off and then locate the round CMOS battery that is attached to the motherboard.

Step 2

Examine the battery to see how it is attached to the motherboard. Pull on the latch to release the battery and then remove it from the motherboard.

Step 3

Wait about 20 to 30 minutes for the electricity in the capacitors on the motherboard to discharge or dissipate.

Step 4

Set the CMOS battery back in the motherboard. Set the side panel back in place and the plug the power cord back in.

Step 5

Restart the computer and press the "F2" key to access the BIOS.

Tips & Warnings

  • Do not attempt to remove the battery if the computer is still connected to a power source.