Is UEFI required for Windows 11?
Why does Windows 11 need UEFI Secure Boot?
Does your PC use UEFI?

How to enable Secure Boot in Windows 11?
Before installing Windows 11, you should know if your PC meets thebasic system requirementsof this new operating system.
Among them, TPM 2.0 and UEFI Secure Boot are a must for you to upgrade to Windows 11.

Today, we will focus on Windows 11 UEFI.
Whats Windows 11 UEFI Secure Boot?
It is a replacement for the legacy BIOS firmware.
UEFI supports repair and remote diagnostics of computers.
To learn more information about UEFI, go toMiniTool library.
Related article:UEFI vs BIOS Whats the Differences and Which One Is Better.
UEFI supports Secure Boot.
It is a security feature built-in most devices with UEFI firmware.
Why Windows 11 Requires UEFI?
Why does Windows need UEFI?
This is mainly because of the security of UEFI.
To get enhanced security, Microsoft has decided to use the advantages of UEFI in Windows 11.
This indicates Windows 11 must run with UEFI.
Besides, to run Windows 11 well, you must enable Secure Boot.
Which Boot Mode Your PC Is Using?
Which boot mode your PC is using, UEFI or legacy BIOS?
Then, you will get the System Information interface.
Scroll down to BIOS Mode.
If it is UEFI, your PC meets the system requirement of UEFI.
If it is Legacy BIOS, this means your PC is not compatible with Windows 11.
How to Enable Windows 11 UEFI Secure Boot?
For modern OEM PCs, UEFI firmware and TPM 2.0 are supported.
And most PCs own the system with UEFI mode.
But if Secure Boot is not enabled, you dont know if the PC is compatible with Windows 11.
Fortunately, you’re free to follow the steps below to enable UEFI Secure Boot.
Step 1: ClickShiftandRestartto boot your Windows 10 computer toWindows Recovery Environment(WinRE).
Step 2: Go toTroubleshoot > Advanced options > UEFI Firmware configs.
Step 3: ClickRestartfor a system reboot and your PC will go to a boot or security prefs page.
Final Words
If you want to install Windows 11 without UEFI, what should you do?
Refer to this post How to Install Windows 11 on Unsupported PC/Hardware?
(4 Ways)and you’re free to run this new operating on an unsupported PC.