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What is UEFI and how is it different from the BIOS?


Both UEFI and BIOS are mini systems that are started when you boot your PC before booting your operating system Windows 11, 10, ... and other OS.



UEFI is a modern solution that also supports larger hard drives, it allows faster booting from the computer, also offers more security, has a visually appealing graphic interface, and has full mouse support. Can be updated automatically via the Internet ... etc!

1.) ... Example UEFI when starting the PC!
2.) ... Example UEFI boot system with settings!
3.) ... How to access the UEFI settings on PCs!
4.) ... Can I change / upgrade BIOS to UEFI?



1.) Example UEFI when starting the PC!

When the PC starts, you can call this up directly as with the BIOS, here in the example with F2 or DEL key!

(... see Image-1 Point)

(Image-1) Get into the UEFI when starting the PC!
Get into the UEFI when starting the PC!

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Press F2 or DEL to run UEFI setup
Press F6 for Instant Flash
Press F1 for Boot Menu
Press Tab to Switch Screen
 

2.)) ... Example UEFI boot system with settings!

Here is an example from UEFI, which of course always looks a little different from manufacturer to manufacturer!


(Image-2) UEFI boot system with settings!
UEFI boot system with settings!

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3.) How to access the UEFI settings on PCs!

When Windows 11, 10, 8.1 starts, you can press the F8 key during the start process to also get into the UEFI!

A system recovery in UEFI mode is thus possible!


See: ►► Initiate safe mode in Windows 11, 10, 8.1, ...!


(Image-3) UEFI in Windows 11, 10, ... Troubleshooting!
UEFI in Windows 11, 10, ... Troubleshooting!



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4.) Can I change / upgrade BIOS to UEFI?

There is no way to make a BIOS to UEFI on an existing PC. You have to buy new hardware that supports UEFI! Most new computers do so anyway.

Most UEFI implementations even offer BIOS emulation so you can install and boot up old operating systems that expect a BIOS instead of UEFI, so they are backwards compatible.

With MS Windows 11, 10, ... and MS Server OS this is not necessary, booting via UEFI is possible!



 
 





FAQ 162: Updated on: 12 September 2021 08:42 Windows
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»»

  My question is not there in the FAQ
Asked questions on this answer:
  1. Press F2 or DEL to run UEFI setup?
  2. Press Tab to Switch Screen?
  3. Press F11 for Boot Menu?
  4. Press F6 for Instand Flash?
Keywords: beginners, what, uefi, different, from, bios, both, mini, systems, boot, booting, operating, system, windows, other, Questions, Answers, Software




    

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