The UEFI BIOS (Unified Extensible Firmware Interface) is the firmware interface that starts your computer before Windows loads. It allows you to configure hardware settings, change the boot order, enable or disable Secure Boot, activate virtualization technologies like Intel VT-x or AMD-V, update the BIOS, and manage other system-level options.
Unlike older BIOS systems, most modern Windows 11 computers use UEFI firmware, which provides faster boot times, improved security, and support for larger storage drives. There are several ways to access the UEFI BIOS in Windows 11, whether your computer boots normally or you’re unable to start Windows.
In this guide, you’ll learn the easiest methods to open the UEFI BIOS in Windows 11.
What Is UEFI BIOS?
UEFI (Unified Extensible Firmware Interface) is the modern replacement for the traditional BIOS. It initializes your computer’s hardware during startup and loads the operating system. UEFI also includes advanced features such as:
- Secure Boot support.
- Faster startup times.
- Support for drives larger than 2 TB.
- Graphical firmware interface on many PCs.
- Mouse support.
- Improved hardware compatibility.
- Enhanced security features.
Most computers manufactured in recent years use UEFI instead of the legacy BIOS.
Method 1: Open UEFI BIOS Through Windows Settings
This is the easiest and recommended method if Windows starts normally.
- Press Windows + I to open Settings.
- Select System.
- Click Recovery.
- Under Recovery options, locate Advanced startup.
- Click Restart now.
- Confirm by clicking Restart now again.
- After your PC restarts, select Troubleshoot.
- Click Advanced options.
- Select UEFI Firmware Settings.
- Click Restart.
Your computer will restart directly into the UEFI BIOS.
Method 2: Access UEFI Using the Power Menu
You can also enter the Advanced Startup environment from the Start menu.
- Open the Start menu.
- Click the Power button.
- Press and hold the Shift key.
- While holding Shift, click Restart.
- Release the Shift key after your PC begins restarting.
- Select Troubleshoot.
- Click Advanced options.
- Select UEFI Firmware Settings.
- Click Restart.
Windows will boot directly into your computer’s UEFI firmware.
Method 3: Use the Shutdown Command
Windows includes a command that opens the Advanced Startup menu immediately.
- Press Windows + R.
- Type the following command:
shutdown /r /o /f /t 0- Press Enter.
- Your computer will restart into the Choose an option screen.
- Select Troubleshoot.
- Click Advanced options.
- Choose UEFI Firmware Settings.
- Click Restart.
This method is useful for advanced users and administrators.
Method 4: Enter UEFI BIOS During Startup
Most computers allow you to enter the BIOS by pressing a specific key immediately after powering on the computer.
- Shut down your computer completely.
- Turn it back on.
- Immediately press the appropriate BIOS key repeatedly until the firmware menu appears.
Common BIOS keys include:
| Manufacturer | BIOS Key |
|---|---|
| Acer | F2 or Delete |
| ASUS | F2 or Delete |
| Dell | F2 |
| HP | Esc, then F10 |
| Lenovo | F1, F2, or Novo Button |
| MSI | Delete |
| Gigabyte | Delete |
| Samsung | F2 |
| Toshiba | F2 |
| Surface | Hold Volume Up while pressing Power |
The exact key varies depending on the computer manufacturer.
Method 5: Open UEFI from Windows Recovery Environment
If Windows doesn’t start normally, you can still access UEFI through the Windows Recovery Environment.
- Turn on your computer.
- Interrupt the boot process by holding the power button when the Windows logo appears.
- Repeat this process two or three times until Windows displays Preparing Automatic Repair.
- Select Advanced options.
- Choose Troubleshoot.
- Click Advanced options.
- Select UEFI Firmware Settings.
- Click Restart.
Your PC should boot directly into the BIOS.
Method 6: Use Windows Terminal to Restart into Recovery
Windows Terminal can also be used to access the Advanced Startup menu.
- Right-click the Start button.
- Select Windows Terminal (Admin).
- Run:
shutdown /r /o /f /t 0- Press Enter.
- Follow the recovery menu to:
- Troubleshoot
- Advanced options
- UEFI Firmware Settings
- Restart
This provides the same result as using the Run dialog.
Method 7: Access UEFI Using the Recovery Drive
If Windows cannot boot and the recovery environment is unavailable, a Windows recovery drive can help.
- Connect a Windows recovery USB drive.
- Boot your PC from the USB drive.
- Select your language and keyboard layout if prompted.
- Click Repair your computer.
- Choose Troubleshoot.
- Select Advanced options.
- Click UEFI Firmware Settings.
- Restart into the BIOS.
This method is useful for recovering systems that won’t boot normally.
What If the UEFI Firmware Settings Option Is Missing?
If you don’t see UEFI Firmware Settings, possible reasons include:
- Your computer uses Legacy BIOS instead of UEFI.
- Windows was installed in Legacy (CSM) mode.
- The firmware doesn’t support restarting directly into UEFI.
- Fast Startup prevents the option from appearing.
- The PC manufacturer requires using a dedicated BIOS key during startup.
If your device uses Legacy BIOS, you’ll need to enter it using the manufacturer’s startup key.
Tips for Using UEFI BIOS Safely
Before making changes in the BIOS:
- Record the current settings before modifying them.
- Only change settings you understand.
- Keep the laptop connected to AC power during BIOS updates.
- Avoid interrupting a BIOS update.
- Save changes before exiting if you’ve modified any settings.
Incorrect BIOS settings can prevent Windows from booting properly.
Conclusion
Accessing the UEFI BIOS in Windows 11 is simple using the built-in Advanced Startup options, the Shift + Restart shortcut, or the shutdown command. If Windows won’t start, you can still reach the firmware through the Windows Recovery Environment or by pressing the appropriate BIOS key during startup. Once inside the UEFI BIOS, you can manage boot options, enable virtualization, configure Secure Boot, update the BIOS, and adjust other hardware settings. Following the methods in this guide will help you safely access the firmware on most Windows 11 computers.
Frequently Asked Questions
What’s the difference between UEFI and BIOS?
UEFI is the modern replacement for the traditional BIOS. It offers faster boot times, improved security, support for larger drives, and a more advanced interface.
Why can’t I see the UEFI Firmware Settings option?
The option may be unavailable if your PC uses Legacy BIOS, Windows was installed in Legacy mode, or your system requires entering the BIOS using a startup key.
Will entering the BIOS delete my files?
No. Simply opening the UEFI BIOS doesn’t affect your files or Windows installation. Changes only occur if you modify firmware settings.
Can I access the BIOS without restarting Windows?
No. The UEFI BIOS runs before Windows loads, so your computer must restart to enter the firmware interface.
