Home > Knowledge > BIOS Tips > Simple and Working Solutions to Remove Forgotten or Unknown BIOS Password

Simple Solutions to Remove Forgotten or Unknown BIOS Password

Yesterday my friend, Tom brought a secondly laptop from ebay. It looks quite awesome but he found something wrong when he was going to access the BIOS and change the boot priority-the Bios is password protected. He asked me how to remove his BIOS password. I collected  some solutions shown as below.

Solution 1 Using Universal Passwords (Case sensitive)

If you are bothered with a unknown BIOS password, you are recommended to have a try on its universal password before you take the next step. And some universal passwords are listed below.

For Award BIOS

589589 
589721 
Award 
AWARD 
AWARD SW 
AWARD?SW 
AWARD_PS 
AWARD_PW 
AWARD_SW 
j256 
j262 
J256 
J262
J64
q_l27&z
ALFAROME
BIOSTAR
BIOSSTAR

For AMI BIOS

ami 
AMI 
AMI_SW 
AMI?SW 
AMI?PW 
A.M.I. 
oder 
PASSWORD

For Phoenix BIOS
BIOS 
CMOS 
phoenix 
PHOENIX

Solution 2 Take out the CMOS battery

To begin, shut down the computer and disconnect the power cord. Afterwards, take out the CMOS battery and leave it out for more than 5 minutes (In some cases, a few seconds are OK.), and then reseat it. This will clear all BIOS settings , including the password.(because you made the CMOS chip under the state of power off for a long time. And the chip has remembered nothing now.) Keep in mind that you will have to reset the BIOS date, time and other settings next time you access the BIOS SETUP UTILITY.

Take out CMOS battery

Remove laptop CMOS battery

Solution 3 Windows XP Command Prompt Method (2 steps)

If you are using Windows XP and you can still log in to your Windows, Good! You can solve your problem via Windows XP Command Prompt Method. Here’s how.
Step 1: Click the Start button on the bottom left of the desktop. Run box then type in "cmd"

Step 2: On the pop-up Command Line Prompt, enter and execute the following in turn:

-o 70 10 <Enter>
-o 71 01 <Enter>
-q <Enter>

Note: "-o" is the letter "o" not zero.

Debug command method to remove BIOS password

OK, restart your XP right now and hold the right BIOS Entry Key in time. Then you will be able to access the BIOS without passwords.

Have no idea of how to enter the BIOS, please refer to: How to Access Your BIOS by BIOS Entry Key

Related Articles