How to know if my BIOS is UEFI or Legacy?

Article by: Alba Estévez Jr. | Last update: April 10, 2022
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Press the Windows + Q keys, type CMD, right click on the option and click on “open as administrator”. Once inside CMD, type “bcdedit” and press ENTER, look for the “path” parameter, if it ends in . efi has UEFI, however, if it ends in .exe, you have BIOS.

How to know if I’m in UEFI or Legacy?

We only have to look for the efi folder that must be in the following path “/sys/firmware/efi” if the folder is not found then our system is using legacy BIOS. Whereas if it is found then our computer is using UEFI.

What is the difference between UEFI and Legacy?

The most noticeable difference for the average user between both firmwares is in the appearance. The BIOS has a very MS-DOS layout, and you can only move around it using the keyboard. … Under the hood, the UEFI code runs in 32-bit or 64-bit, while the BIOS typically runs in 16-bit.

How do I know what type my BIOS is?

Using the command prompt in Windows

Type CMD in the search box. Select Command Prompt or CMD . The Command Prompt window appears. Type wmic bios get smbiosbiosversion and then press Enter.

What happens if I switch from UEFI to Legacy?

Note – The operating system can only boot with the value of the boot mode property that was initially configured during installation. If the value of the boot mode property is changed after the operating system is installed, the operating system will become inoperable (will not boot).

18 related questions found

What is Legacy boot mode?

Legacy boot of uefi error in Windows 10 is the message that appears when Windows is booted from a USB flash drive, which is usually a USB drive intended to function as bootable media with a GPT partition scheme.

What advantages does UEFI offer over traditional BIOS?

Support for more than four partitions per drive. Quick start. Efficient management of systems and energy. Fault management and robust reliability.

What is UEFI and what are its advantages?

UEFI is a specification capable of defining the way to communicate between the hardware and software inside a computer. These specifications include two aspects of the process known as boot services and runtime services.

What features does UEFI provide?

UEFI stands out mainly for: Compatibility and BIOS emulation for operating systems only compatible with the latter. Full support for GUID Partition Table (GPT), up to 128 partitions can be created per disk, with a total capacity of 8 ZB.​

What is UEFI and what is it used for?

UEFI (Unified Extensible Firmware Interface) is the firmware code of a chip on the motherboard that provides additional functionality beyond the basic input/output system (BIOS). UEFI offers a way to do things with your computer before an operating system loads.

What is UEFI mode?

It is a security layer that is installed in the UEFI firmware of your computer’s motherboard, and that prevents the execution of unsigned or certified applications when the computer boots, before starting Windows.

How to activate UEFI mode?

Follow the steps below to change the boot mode:

Power on the system. Press F2 when prompted to enter the BIOS menu. Navigate to Boot Maintenance Manager -> Advanced Boot Options -> Boot Mode. Select the desired mode: UEFI or Legacy.

How to enable UEFI in Windows 10?

The first thing you should do is boot the system in advanced boot mode, and to do this from Windows 10 you must access the configuration menu -> Update and security -> Recovery. There you will see a button, under Advanced startup, which gives us the option to “Restart now”.

How to activate UEFI mode and Secure Boot in Windows 10?

To enable it, we will follow the following steps from the BIOS.

Let’s go to the “Advanced” section. … Click on “Windows OS Configuration”. Check that in “BIOS UEFI/CSM Mode” it says “UEFI”. Click or select “Secure Boot”. Click on “Secure Boot Mode” and choose “Custom”.

How to enter UEFI mode Windows 10?

Enter UEFI from Windows 10

The first thing you have to do is enter the Windows 10 Settings. … Once you are in the Windows Settings, now click on the Update and security option, since there you can access the advanced startup.

What is the difference between EFI and UEFI?

In Bios UEFI we can only install 64-bit systems. The 32’s will never install in UEFI mode. The EFI is a much friendlier BIOS than the classic blue screen BIOS, which supports a higher quality graphic environment, multilanguage, application preloading or LAN management, among many other options.

What are the disadvantages of BIOS?

What are the disadvantages of BIOS?

    It boots in 16-bit real mode (Legacy Mode) and is therefore slower than UEFI. End users can destroy the base I/O system memory when upgrading it. Cannot boot from large storage drives.

What happens if I disable secure boot?

The function of Secure Boot is to be totally restrictive with any non-certified software, since otherwise it would not be a good security system. No distinctions of any kind are made; if it is not certified it is not executed.

How to switch from UEFI to Legacy on Lenovo?


Step 1 – Turn on or restart your Lenovo laptop. Keep pressing the F2 shortcut until you see the BIOS screen. …Step 2: Highlight Boot Mode. Press Enter. … Step 3: Press the keyboard shortcut Fn + F10. Choose Yes Press Enter to save the boot configuration.

How to remove UEFI from BIOS?

2- We enter the BIOS (image below), go to the ‘Boot’ tab and scroll down using the directional arrows on the keyboard, selecting the option “Boot type” and hit ‘Enter’. 3- Once inside, we can select 3 different startup modes, Dual, Legacy and UEFI.

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