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  1. What exactly is "UEFI with CSM" boot mode? - Super User

    Jan 11, 2018 · Under this question, I was told that "UEFI with CSM" is essentially BIOS mode. It made me quite confused because what I've learnt over the years is far from that. As per my observation, I …

  2. boot - What is CSM option - Super User

    Dec 26, 2014 · What is the CSM option in BIOS? If I can't boot into Windows any more, is it because CSM is disabled? Would an ASUS K55 come with this option diabled?

  3. How to switch MSI BIOS from UEFI mode to LEGACY+UEFI mode?

    Nov 2, 2024 · BIOS CSM/UEFI Mode was = UEFI BIOS CSM/UEFI Mode now = CSM thus change from UEFI to CSM SECURITY (Right side of screen, Right bottom corner) \ Secure Boot \ Secure Boot = …

  4. Where is the CSM (Compatibility Support Module) option in ASUS UEFI ...

    May 18, 2025 · Here's how to enable CSM in this version of ASUS UEFI BIOS Utility even when it doesn't show up as an option under Boot: Activate [?]Search(F9) in the top right of the screen Type …

  5. Common BIOS settings for ASUS Motherboards - ROG

    Jun 2, 2025 · Common BIOS settings for ASUS Motherboards For common BIOS setting options, you can refer to below FAQs.

  6. Can i safely change my BIOS to UEFI only? - Super User

    Apr 16, 2023 · CSM enabled doesn't preclude a (correct, proper) installation in UEFI mode. Many firmwares still to this day have the CSM/Legacy option with typically 3 "switches": UEFI only, UEFI + …

  7. I am changing from CSM BIOS mode to UEFI BIOS mode. Is it safe?

    Dec 13, 2023 · I have been told by a professional that choosing uefi mode in BIOS from CSM mode in BIOS is safe. Because in device manager it says that my system is in UEFI mode, I have 2 pictures …

  8. Detect CSM mode in Windows through PowerShell - Super User

    Mar 28, 2025 · Is there a way, ideally using PowerShell (but this can encapsulate things like WMI checks), to tell whether the Windows OS was booted specifically from UEFI-based firmware running …

  9. [ASUS Armoury Crate] Armoury Crate FAQ | Official Support - ROG

    Aug 25, 2025 · [ASUS Armoury Crate] Armoury Crate FAQAbove information might be partly or entirely quoted from exterior websites or sources. please refer to the information based on the source that …

  10. Should I install an OS using UEFI or BIOS (legacy/CSM) boot mode?

    Aug 15, 2016 · I'm installing a new operating system on my computer. Should I install it for booting in UEFI or legacy (BIOS/CSM) mode? What are the advantages or disadvantages to using one or the …