How to Open BIOS in Windows 10: Every Method Explained

The BIOS (Basic Input/Output System) is the firmware that runs before Windows even loads. It controls hardware initialization, boot order, system clock, and low-level settings that no app or operating system can reach. Knowing how to get there is a fundamental skill for anyone troubleshooting, upgrading hardware, or adjusting startup behavior.

Here's every reliable method to access BIOS on a Windows 10 machine — along with what shapes which method works for you.

What Is BIOS (and UEFI)?

Modern computers use UEFI (Unified Extensible Firmware Interface), which is the updated successor to traditional BIOS. Most people still call it BIOS, and Windows 10 uses that term too. Functionally, you're accessing the same thing: the firmware settings screen that lives below the operating system.

The key difference matters for one reason: UEFI systems boot faster, sometimes too fast to catch a key press during startup. This is why Windows 10 offers software-based access routes that older machines didn't have.

Method 1: The Firmware Key During Startup ⌨️

The traditional method — pressing a specific key as your computer boots — still works on most machines, but timing is everything.

Common BIOS entry keys by manufacturer:

How to do it:

1. Fully shut down your PC (not sleep or hibernate)
2. Press the power button
3. Immediately and repeatedly tap the BIOS key for your manufacturer
4. Stop when the BIOS/UEFI screen appears

The challenge: UEFI-based machines with Fast Boot enabled may pass through the pre-boot phase in under two seconds. If Windows loads before you get in, you likely need a different approach.

Method 2: Through Windows 10 Settings (Most Reliable for UEFI)

Windows 10 includes a built-in path to UEFI firmware settings that bypasses the timing problem entirely.

Steps:

1. Open Settings → Update & Security
2. Select Recovery from the left panel
3. Under Advanced startup, click Restart now
4. After restart, select Troubleshoot → Advanced options → UEFI Firmware Settings
5. Click Restart — your system boots directly into BIOS

If you don't see the UEFI Firmware Settings option, your machine may be running legacy BIOS rather than UEFI, or the option may be disabled at the firmware level.

Method 3: Shift + Restart

A faster version of the same Windows recovery route:

1. Click the Start menu
2. Click the Power icon
3. Hold Shift and click Restart
4. Navigate: Troubleshoot → Advanced options → UEFI Firmware Settings → Restart

This skips several menus and gets you to Advanced startup in one step. It works identically to Method 2 — just faster to initiate.

Method 4: Using the Command Prompt or Run Dialog

For users comfortable with command-line tools, Windows can be told to boot into firmware settings on the next restart.

Via Command Prompt (run as Administrator):

shutdown /r /fw /t 0 

Via the Run dialog (Win + R):

shutdown /r /fw /t 0 

The /fw flag tells Windows to boot into firmware on the next restart. The /t 0 sets a zero-second delay. Your machine restarts immediately and lands in BIOS.

This method is especially useful for remote desktop sessions or scripted workflows where clicking through menus isn't practical.

Method 5: Interrupt Normal Boot (for Older or Legacy Systems) 🔧

Some older machines — particularly those running traditional BIOS rather than UEFI — don't respond to Windows-based methods. On these systems:

• Fast Boot may need to be disabled first (if you can get into BIOS once, you can toggle this)
• The firmware key timing window is longer on older hardware, making repeated tapping more effective
• Some machines display a brief on-screen prompt at startup indicating which key to press

If you're on a machine that's several years old and none of the software methods work, the startup key approach is your primary option.

What Affects Which Method Works for You

Not every method works on every machine. The variables that determine your path include:

Hardware age and firmware type: UEFI-based systems (generally post-2012) support the Windows Settings and shutdown command methods. Legacy BIOS machines do not.

Fast Boot setting: When enabled, the hardware phase of booting is compressed. The keyboard method becomes unreliable. The software methods become essential.

Manufacturer-specific behavior: Some OEMs lock down or rename UEFI options. A few enterprise laptops require a dedicated button (like Lenovo's Novo button) rather than a key during POST.

Windows installation type: If Windows is installed in legacy/MBR mode rather than UEFI/GPT mode, the UEFI Firmware Settings option may not appear in Advanced startup — even on UEFI-capable hardware.

User permissions: The shutdown command method requires Administrator access. Standard accounts on shared or managed machines may not have it.

Once You're In BIOS: What to Expect

BIOS interfaces vary significantly by manufacturer. Some use mouse-compatible graphical interfaces; older ones are keyboard-only. Common sections include:

• Boot order — controls which device (SSD, USB, network) loads first
• Secure Boot — a UEFI security feature, sometimes toggled for dual-boot setups
• XMP/DOCP profiles — for enabling RAM's rated speed
• Virtualization settings — required for running virtual machines
• Power management — controls wake behavior, fast boot, and fan curves

Changes made here affect hardware directly. Most BIOS screens include a warning prompt before saving. If you're unsure about a setting, the Load Defaults or Optimized Defaults option resets everything to factory state. ⚙️

The Variable That Remains

The method that gets you into BIOS cleanly depends on a specific combination of factors — your hardware generation, firmware mode, Fast Boot configuration, Windows installation type, and account permissions. Two machines running identical copies of Windows 10 can require completely different approaches based on what's underneath the operating system.

Understanding your own system's firmware type and current boot settings is the piece that determines which path applies to you.