Windows 10: Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI...

Discus and support Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... in Windows 10 Installation and Upgrade to solve the problem; Hello Microsoft Community, Today I'm posting with one of the weirdest things I've had happen to me since I built my PC. When trying to do one of the... Discussion in 'Windows 10 Installation and Upgrade' started by mjanicek, Apr 19, 2021.

  1. mjanicek Win User

    Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI...


    Hello Microsoft Community,


    Today I'm posting with one of the weirdest things I've had happen to me since I built my PC. When trying to do one of the routine updates Windows gets seemingly weekly, I get an error that appears like the following:


    Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... 89fb96a3-c010-45e3-8844-ab55e91b00d1?upload=true.png


    After doing a bit of research primarily this thread and some other stuff regarding MBR2GPT, I don't think I have enough information to do this myself and so I would appreciate some help from all of you knowledgeable people :


    As it appears, I can use MBR2GPT with my current version of Windows 10 v20H2 in order to convert my system drive to a suitable UEFI format, though even trying that added another degree of confusion to the mix. When I run cmd.exe as an Administrator and use /allowFullOS, just to try and validate if I can use the program, I get...


    "MBR2GPT: Attempting to validate disk 1

    MBR2GPT: Retrieving layout of disk

    MBR2GPT: Validating layout, disk sector size is: 512 bytes

    Cannot find OS partitions for disk 1"


    Disk 1 is, of course, my main system disk, and I'm really not sure what to do anymore. I think I should be able to, but can I use MBR2GPT in order to re-format my UEFI so I can update Windows? Otherwise, what are my alternatives? I'm not exactly sure how to create a backup/recovery drive in Windows 10, so I would appreciate some help with that as well if it is a more advisable route.



    Thanks so much in advance, everyone!

    :)
     
    mjanicek, Apr 19, 2021
    #1
  2. 10fused Win User

    Unsupported Disk Layout for UEFI Firmware

    Well, after deleting the partition per the most recent thread, it changed the BIOS settings.


    Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... [​IMG]



    Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... [​IMG]



    Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... [​IMG]



    Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... [​IMG]
     
    10fused, Apr 20, 2021
    #2
  3. Unsupported disk layout for UEFI firmware

    It would help the discussion to know, when did you see the message: "Windows can't be installed because this PC has an unsupported disk layout for UEFI firmware."? How did that message come about? Was this a result
    of Windows Update trying to upgrade from 10240 to a newer version of Windows?
     
    Don Cuthbert, Apr 20, 2021
    #3
  4. Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI...

    Don Cuthbert, Apr 20, 2021
    #4
Thema:

Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI...

Loading...
  1. Cannot Update to Windows v20H2 "because this PC has an unsupported disk layout for UEFI... - Similar Threads - Cannot Update v20H2

  2. Unsupported disk layout for UEFI firmware

    in Windows 10 Installation and Upgrade
    Unsupported disk layout for UEFI firmware: I wasn't able to update my windows because it stated that the disk layout was unsupported. I have 1903 but have no idea what to do https://answers.microsoft.com/en-us/windows/forum/all/unsupported-disk-layout-for-uefi-firmware/5db915ea-310f-48ea-9fad-6dd8b0409a91
  3. Windows can't be installed because this PC has an unsupported disk layout for UEFI firmware

    in Windows 10 Installation and Upgrade
    Windows can't be installed because this PC has an unsupported disk layout for UEFI firmware: My PC failed to update windows 10 version 1903, showing the problem like my subject. Wonder how I can update my system (I'm also still using windows 10, version 1803 now)....
  4. Unable to update due to unsupported UEFI layout

    in Windows 10 Installation and Upgrade
    Unable to update due to unsupported UEFI layout: Hello! My windows 10 is on version 1709. When I try to update , it says my UEFI layout is unsupported. I don't really know what this mean. I have a G7 7588. When I first got it, the biggest hard drive wasn't installed correctly and I had to send it back to the company for...
  5. UEFI : The disk layout for UEFI firmware isn't supported.

    in Windows 10 Installation and Upgrade
    UEFI : The disk layout for UEFI firmware isn't supported.: Windows won't update and I get the above message. This is my Windows info [ATTACH] What do I need to fix it. https://answers.microsoft.com/en-us/windows/forum/all/uefi-the-disk-layout-for-uefi-firmware-isnt/1a7e5683-4863-4c1f-b2e9-89e6918e8135
  6. The Disk layout for UEFI firmware not supported

    in Windows 10 Installation and Upgrade
    The Disk layout for UEFI firmware not supported: When I was about to install the latest update for Windows 10 64bits I received the message: The Disk layout for UEFI firmware not supported. How I can fix that? I have Windows 10 working on Samsung MV 2 But all work fine....
  7. Unsupported Disk Layout for UEFI firmware

    in Windows 10 Installation and Upgrade
    Unsupported Disk Layout for UEFI firmware: 1803 will nt install. I get an error message saying I have an unsupported disk layout for UEFI firmware. The OS is on an MBR disk. Does this mean I have to make it a GPT? 110420
  8. 'Unsupported Disk Layout for UEFI Firmware' yet BIOS Mode set to UEFI

    in Windows 10 Updates and Activation
    'Unsupported Disk Layout for UEFI Firmware' yet BIOS Mode set to UEFI: Sometime in the fall I started getting Windows 10 update errors trying to install 1607 (the anniversary update I believe). After trying different fixes I just ignored it for a while hoping windows would come up with a fix. 6 months later and I'd like to finally resolved this...
  9. Unsupported Disk Layout for UEFI Firmware

    in Windows 10 Updates and Activation
    Unsupported Disk Layout for UEFI Firmware: BIOS is set to boot Legacy. Here are the two prior threads getting me from being patently annoyed with 1703 being chronically hung on a quality update to where I am now. The first one is a long read and the summary is, lots of trainwreckage, machine boots in Legacy....
  10. Cannot upgrade due to unsupported disk layout for UEFI firmware

    in Windows 10 Support
    Cannot upgrade due to unsupported disk layout for UEFI firmware: This problem is driving me nuts. *Confused I've had Win10 installed for ages and no problems until Upgrade 1511 came along. How come Windows 10 worked all that time and now refuses to upgrade? Can anyone provide a fix for this problem: Upgrade to Windows 10 Home,...