A BIOS password, also called a UEFI password on many modern computers, protects firmware settings from unauthorized changes. It is separate from your Windows password, PIN, and Microsoft account password.
If you know the existing BIOS password, removing or changing it is usually straightforward through the firmware settings. If you have forgotten it, however, the solution depends on the computer or motherboard manufacturer. Modern systems may use security mechanisms that prevent a simple CMOS reset from clearing the password.
Before making any changes, identify whether you are dealing with a BIOS/UEFI password or a Windows sign-in password. Windows passwords are reset through Windows or Microsoft account recovery tools, while firmware passwords are handled before Windows starts. Microsoft also notes that UEFI settings vary by manufacturer.
Method 1: Remove the BIOS Password From BIOS/UEFI
If you know the current password, this is the safest way to remove it.
- Shut down your computer.
- Turn it on and repeatedly press the BIOS/UEFI setup key.
- Common keys include F2, Delete, Esc, and F10, depending on the manufacturer.
- Enter the current BIOS password.
- Open the Security, Password, or similar section.
- Find the administrator, supervisor, setup, or BIOS password option.
- Select the option to change the password.
- Enter the current password when requested.
- When prompted for a new password, leave the new password fields blank if your firmware allows this.
- Save the changes and exit BIOS/UEFI.
The exact names and locations of these options vary between computers.
After restarting the PC, enter BIOS/UEFI again to verify that the password is no longer requested.
Some computers have separate administrator and power-on passwords. If more than one password is configured, check the available security settings carefully.
Method 2: Change the BIOS Password Instead of Removing It
If you know the existing password but want to replace it, you do not necessarily need to remove firmware protection completely.
- Enter BIOS/UEFI setup.
- Open the Security or Password section.
- Select the applicable password option.
- Enter the current password.
- Enter the new password.
- Confirm the new password.
- Save the changes.
- Restart the PC.
A BIOS password can provide an additional layer of protection because it controls access to firmware settings before Windows starts.
If you create a new password, store it somewhere secure. Some manufacturers provide no simple recovery option for a forgotten UEFI password.
For example, Microsoft states that on Surface devices, a UEFI password cannot be reset by Microsoft or retrieved if forgotten.
Method 3: Use the Manufacturer’s Password Recovery Procedure
If you have forgotten the BIOS password, start by identifying the exact computer model.
- Check the model number on the computer.
- Visit the manufacturer’s official support website.
- Search for your exact model.
- Look for BIOS, UEFI, firmware, or password-recovery documentation.
- Follow the manufacturer’s instructions.
- Contact technical support if the documentation does not provide a recovery procedure.
This is particularly important for laptops and business computers.
Modern firmware passwords can be deliberately designed to resist simple removal. A method that works on one computer may not work on another, even if both use the same BIOS manufacturer.
If the manufacturer requires proof of ownership before providing assistance, be prepared to provide the requested information.
Avoid relying on unofficial master-password generators or random BIOS-bypass utilities found online. They may be outdated, unsafe, or inappropriate for your particular system.
Method 4: Clear CMOS on a Desktop PC
Some desktop motherboards allow you to reset firmware configuration using a dedicated CMOS reset button or jumper.
This may clear certain BIOS settings, but it does not guarantee that every BIOS password will be removed. Modern systems can store security credentials separately from ordinary CMOS settings.
If your motherboard documentation specifically recommends a CMOS reset:
- Shut down the PC.
- Disconnect the power cable.
- Press the power button briefly.
- Open the computer case.
- Locate the motherboard’s Clear CMOS, CLR_CMOS, or equivalent button or jumper.
- Follow the motherboard manufacturer’s instructions.
- Restore the jumper to its normal position if required.
- Reconnect the power.
- Start the computer.
Do not randomly short motherboard pins. Many headers look similar, and using the wrong pins can cause hardware problems.
After clearing CMOS, you may need to restore settings such as:
- Boot order
- System date and time
- Fan configuration
- Virtualization
- Storage-controller settings
- Other customized firmware options
Microsoft also recommends consulting the PC manufacturer’s documentation when making BIOS/UEFI changes because firmware interfaces and settings differ between devices.
Method 5: Remove the CMOS Battery on a Compatible Desktop
Some desktop motherboards use a removable coin-cell battery to maintain CMOS settings.
On supported systems, removing and reinstalling the battery can reset certain firmware configuration settings.
- Shut down the computer.
- Disconnect the power cable.
- Press the power button briefly.
- Open the computer case.
- Locate the CMOS battery on the motherboard.
- Remove it carefully according to the motherboard documentation.
- Wait for the period recommended by the manufacturer.
- Reinstall the battery in the correct orientation.
- Close the case.
- Reconnect the power cable.
- Start the computer.
However, do not assume that this will remove a modern BIOS password. Many newer systems protect firmware passwords separately.
If the password remains after a CMOS reset, stop trying random hardware procedures and check the manufacturer’s support documentation.
Opening a desktop PC also requires care around static electricity and internal components. If you are not comfortable working inside the computer, professional service is safer.
Method 6: Reset UEFI Settings Through Advanced Startup
Windows 11 can provide a way to enter UEFI firmware settings without relying on the manufacturer’s startup key.
This does not bypass a BIOS password. It simply provides another way to reach the firmware interface when the computer allows access.
- Open Settings.
- Select System.
- Select Recovery.
- Find Advanced startup.
- Click Restart now.
- After the PC restarts, select Troubleshoot.
- Select Advanced options.
- Select UEFI Firmware Settings.
- Click Restart.
The PC will restart into its UEFI firmware interface if the option is supported. Microsoft documents this path for accessing UEFI settings in Windows 11.
If the firmware requires a password, you will still need to provide the correct password.
Method 7: Contact the Manufacturer or Authorized Service Center
If you forgot the password and the supported recovery options do not work, contacting the computer or motherboard manufacturer is the appropriate next step.
Have the following information available:
- Exact model number
- Serial number or service tag
- BIOS/UEFI version if available
- Description of the password problem
- Proof of ownership if requested
The manufacturer may provide a model-specific procedure or direct you to an authorized service center.
Business computers can have additional security protections managed by an organization’s IT department. If the computer belongs to a company or school, contact the administrator rather than attempting to bypass the firmware security.
Microsoft similarly recommends manufacturer documentation for firmware-specific settings and enterprise UEFI issues.
Method 8: Make Sure It Is Actually a Windows Password
Sometimes a password displayed during startup is mistaken for a BIOS password.
A Windows sign-in password appears after the computer has already started Windows. A BIOS/UEFI password appears before Windows loads and protects firmware access or startup.
If you are looking at the Windows sign-in screen, use Windows’ supported password recovery options instead.
For a Microsoft account:
- Select I forgot my password at the sign-in screen.
- Follow the identity-verification instructions.
- Create a new password.
For a local Windows account:
- Select the password reset option at the Windows sign-in screen.
- Answer the security questions configured for the account.
- Create a new password.
Microsoft documents these Windows password-reset procedures separately from firmware settings.
Resetting a Windows password will not remove a BIOS/UEFI password, and clearing BIOS settings will not reset your Microsoft account password.
Conclusion
Removing or resetting a BIOS password depends primarily on whether you know the existing password and how your particular computer implements firmware security.
If you know the password, use the BIOS/UEFI Security settings to remove or change it. If you have forgotten it, check the manufacturer’s official recovery instructions before attempting any hardware reset.
Desktop computers may provide CMOS reset buttons, jumpers, or removable batteries, but these methods do not universally remove modern firmware passwords. Some systems protect the password separately from ordinary CMOS settings.
Windows 11 also provides Settings > System > Recovery > Advanced startup > UEFI Firmware Settings as a convenient way to enter supported UEFI interfaces, but it does not bypass a firmware password.
Most importantly, do not confuse a BIOS password with a Windows password. If the password appears at the Windows sign-in screen, use Microsoft’s supported account-recovery options instead.
FAQs
1. Can I remove a BIOS password from Windows 11?
Usually, no. A BIOS or UEFI password is managed by the computer’s firmware rather than Windows. You normally need to change it from the BIOS/UEFI interface or follow the manufacturer’s recovery procedure.
2. Will removing the CMOS battery remove my BIOS password?
It depends on the computer. Some older systems may clear password-related settings through a CMOS reset, but many modern computers protect firmware passwords separately. Check your motherboard or computer manufacturer’s documentation first.
3. What should I do if I forgot my BIOS password?
Contact the computer or motherboard manufacturer and check its official password-recovery procedure. If the device belongs to a business or school, contact the organization’s IT administrator.
4. Is a BIOS password the same as a Windows password?
No. A BIOS/UEFI password protects firmware settings or startup access, while a Windows password protects your Windows user account. Microsoft provides separate recovery procedures for Windows and Microsoft account passwords.
Quick Summary
- Remove a known BIOS password through the BIOS/UEFI Security settings.
- CMOS resets do not guarantee removal of modern firmware passwords.
- Forgotten BIOS passwords should be handled through the manufacturer’s official recovery process.
- A BIOS password and Windows sign-in password are two different types of security.