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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: 26 May 2024 09:05 Windows
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»»

  My question is not there in the FAQ
Asked questions on this answer:
  1. Why is UEFI a modern solution for computer booting?
  2. What steps are required to customize the UEFI boot system?
  3. How do UEFI and BIOS differ in terms of security?
  4. Why is UEFI considered a future-proof solution for PC booting?
  5. Press F11 for Boot Menu?
  6. Why does UEFI provide a visually appealing graphical interface?
  7. Why is UEFI support common on new computers?
  8. What role does mouse support play in UEFI?
  9. Press F2 or DEL to run UEFI setup?
  10. Press Tab to Switch Screen?
  11. What is the difference between UEFI and BIOS?
  12. What precautions are required to ensure a smooth transition from BIOS to UEFI?
  13. Which terms are relevant in the Windows 11, 10 troubleshooting?
  14. Why is system restore possible in UEFI mode?
  15. How to access UEFI when booting PC?
  16. What role does BIOS emulation play in relation to UEFI?
  17. Why is fast booting from computer possible with UEFI?
  18. What possibilities does UEFI offer for system management?
  19. Is there a way to switch an existing BIOS to UEFI?
  20. How important is UEFI backwards compatibility?
  21. What steps are required to switch from BIOS to UEFI?
  22. What are the differences between UEFI and BIOS in terms of configuration?
  23. What impact does BIOS emulation have on system performance?
  24. Why is UEFI important for modern operating systems like Windows 11?
  25. What advantages does UEFI offer compared to BIOS?
  26. What keyboard shortcuts can be used when starting the PC?
  27. Which key do you have to press to get into UEFI?
  28. How to access UEFI settings during Windows boot?
  29. What features of the UEFI boot system are relevant for users?
  30. How to determine if a computer supports UEFI?
  31. Which operating systems can be booted via UEFI?
  32. What hardware requirements are required to use UEFI?
  33. Press F6 for Instand Flash?
  34. What are some ways to ensure the UEFI is always up to date?
  35. Which manufacturers offer different UEFI interfaces?
  36. What are the options to automatically update the UEFI?
  37. What features does the UEFI boot system with settings provide?
Keywords: beginners, what, uefi, different, from, bios, both, mini, systems, boot, booting, operating, system, windows, other, Questions, Answers, Software




  

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