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How to Check BIOS Mode (UEFI or Legacy) in Windows 11 (Complete Guide 2026)
Knowing whether your computer is running in UEFI or Legacy BIOS mode is important before installing Windows 11, enabling Secure Boot, upgrading hardware, or troubleshooting boot-related issues.
%20in%20Windows%2011%20(Complete%20Guide%202026).png "How to Check BIOS Mode (UEFI or Legacy) in Windows 11 (Complete Guide 2026)") |
| Learn how to determine whether your Windows 11 PC uses UEFI or Legacy BIOS with built-in tools like System Information, Disk Management, and Command Prompt to ensure compatibility with Secure Boot, TPM 2.0, and Windows 11 requirements. |
Windows 11 provides several built-in tools that make it easy to identify your current BIOS mode without restarting your computer.
Related: How to Check BIOS Version in Windows 11
Method 1: Check BIOS Mode Using System Information
- Press Windows + R.
- Type msinfo32.
- Press Enter.
- Locate BIOS Mode.
The value will display either:
- UEFI
- Legacy
This is the fastest and most reliable method.
Method 2: Check Using Disk Management
- Press Windows + X.
- Select Disk Management.
- Right-click your system disk.
- Select Properties.
- Open the Volumes tab.
If the partition style is GUID Partition Table (GPT), your PC typically uses UEFI. If it is Master Boot Record (MBR), it is commonly associated with Legacy BIOS.
Method 3: Check Using Command Prompt
diskpart list disk
If an asterisk (*) appears under the GPT column for your system disk, the disk uses GPT, which is commonly paired with UEFI.
UEFI vs Legacy BIOS
| Feature | UEFI | Legacy BIOS |
|---|---|---|
| Boot Speed | Faster | Slower |
| Secure Boot | Supported | Not Supported |
| Partition Style | GPT | MBR |
| Maximum Disk Size | Over 2 TB | Up to 2 TB |
| Windows 11 Compatibility | Recommended | Limited |
Why Check BIOS Mode?
- Verify Windows 11 compatibility.
- Enable Secure Boot.
- Prepare for TPM 2.0 configuration.
- Plan storage upgrades.
- Troubleshoot boot problems.
Can You Switch from Legacy to UEFI?
Yes. Windows includes the MBR2GPT tool that can convert many system disks from MBR to GPT without reinstalling Windows, provided your hardware supports UEFI. Always back up important data before making partition or firmware changes.
Related Articles
- How to Check BIOS Version in Windows 11
- How to Check Motherboard Model in Windows 11
- How to Find Your PC Specifications in Windows 11
- How to Check Laptop Model in Windows 11
- How to Update Drivers in Windows 11
Frequently Asked Questions
Can Windows 11 run on Legacy BIOS?
Windows 11 is designed to run with UEFI firmware and Secure Boot. Legacy BIOS systems may not meet Microsoft's recommended requirements.
Does GPT always mean UEFI?
GPT is strongly associated with UEFI systems, although certain configurations may vary depending on firmware settings.
Should I change Legacy BIOS to UEFI?
If your hardware supports UEFI and you plan to use Windows 11 features such as Secure Boot, converting to UEFI may provide better compatibility and security.
Final Thoughts
Checking whether your PC uses UEFI or Legacy BIOS in Windows 11 is quick and easy with System Information, Disk Management, and Command Prompt. Knowing your BIOS mode helps ensure compatibility with Windows 11, Secure Boot, TPM 2.0, and future hardware upgrades.