What does resetting a laptop BIOS password mean and how can I fix resetting a laptop BIOS password?

June 20, 2020 by Brayden Callaghan


This user guide lists some possible reasons for resetting the laptop BIOS password. Then there are several possible ways to solve this problem.

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  1. When the computer starts up, press F1, F2 or Del to access the CMOS configuration.
  2. If a password is requested in the CMOS setup, guess three times until you get the code.

laptop bios password reset


How do I find my BIOS password Windows 10?

Resetting the BIOS password on a Windows 10 PC
  1. Step 2: Now you should see a number or code on the screen.
  2. Step 3: Visit the website with the BIOS password on your smartphone or other computer, enter the code that you saw on the BIOS screen, then click the "Get Password" button to display the password,
  3. Step 4: Finally, enter the password above on your PC.


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Any amateur computer technician needs to know how to reset BIOS passwords that can be set in the BIOS, as they sometimes need access to change certain configuration settings, such as boot order or disable features such as AHCI mode. If a password is set, you cannot access the BIOS or even start the computer yourself if you do not know it. This can lead to a real headache if no one knows the password. This is becoming more and more common, because now many computers are changing hands, and the previous owners set a password and did not share this information.

Most of us best reset or reset the BIOS password by physically shutting down the computer, disconnecting all cables, and removing the battery from the motherboard for several minutes. Another option is to close the transparent CMOS jumper on the motherboard itself, if any. These methods work because most motherboards for desktops and some laptops use a battery to saveBIOS / CMOS settings. Shutting down will reset the BIOS / CMOS and password.

Common Default Passwords For Backdoors

Before using any tools that try to reset or make changes to the BIOS, you should check to see if passwords or known backdoors have been known for a long time. Click on the link below to view the list. Passwords are case sensitive.

If You Can Run Windows

CMOS De-Animator is a modern tool compared to most other BIOS hack / reset tools and can reset the BIOS password in Windows. The latest executable version 2 of CMOS De-Animator is compatible with 32-bit and 64-bit operating systems.

All you have to do is run the tool as administrator (right-click -> "Run as administrator") and click "Next", and then restart "computer. When your computer starts up, you should see a CMOS checksum error that allows you to enter the BIOS without a password. CMOS De-Animator invalidates your system's CMOS checksumA theme that resets all settings to default settings and deletes all BIOS passwords saved during a reboot.

CMOS De-Animator also has a basic backup and restore option that provides added security. The file is saved with the extension .dea. Pay attention to the authors' warnings regarding the problem of using the program on laptops and using CMOS De-Animator at your own risk. Due to its nature, the program sometimes causes false positives in antivirus programs and on websites such as Virus Total.

If You Cannot Boot From Your Hard Drive Or CD

Although turning off the power and disconnecting the battery from the motherboard on desktop computers should remove the password for a few minutes, on laptops this is much less likely, but it is still possible on some older models. For added security, laptop passwords are usually stored on a separate EEPROM chip, which is not based on the BIOS battery and is not prone to power failures.

If you enter several times Incorrect password on the laptop, a message appears stating that the laptop is locked. You will receive something like “System is disabled” or “Password verification error”. The message "System stopped" with some numbers. If you see this message when entering the BIOS, you can simply turn off and turn on the computer to remove it and try again. Make a note of this number, as it is valuable and necessary information to generate a BIOS backdoor password so you can return to your laptop.

You just need to have the number on hand and then visit the BIOS Master Password Generator website. This site has been configured so that you can easily recover possible passwords based on the entered number. Enter it and press the button. Then look at the results and write down all the passwords that are close to your laptop model.

Try the codes in a blocked BIOS message to see if they work. Depending on the laptop model, you may need to press Enter or Ctrl + Enter after entering the code. The codes used are based on the work of Dogbert, who has done a lot of research and created some smallPython utilities and scripts to unlock laptops of different brands.

If the above website or its codes do not work, visit the Dogbert blog, where you can find more information about the brand of your laptop and download a separate utility for generating master passwords. To use any of the programs, just download and run a voucher for your laptop. Then enter the number and press Enter. The master password is displayed so that you can try to unlock the computer.

You must run the master password tool on a computer that can run Windows and on which .NET is installed. If you don’t know which tool to use, you can test them all until you find the one that suits your laptop.



Does flashing BIOS remove password?

Shutting down will reset the BIOS / CMOS and password. If for any reason you cannot reset your computer’s BIOS security password by removing the battery or by clearing the CMOS jumper and you don’t know which password, there are several options that you can try to remove.

How do I reset a forgotten password on my laptop?

Reset Password
  1. Click the "Start" button, select "Control Panel", select "User Accounts", "User Accounts", and then select "Manage User Accounts".
  2. On the Users tab, in the Users of this computer section, select the user account name, and then select Reset Password.


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