Creator's Update- Disk Layout for UEFI firmware isn't supported error

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  1. Posts : 5
    Windows 10 x64
       #1

    Creator's Update- Disk Layout for UEFI firmware isn't supported error


    Hi there. Applying the creators update manually to an existing Win 10 x64 installation, or at least attempting to. When using the manual upgrade exe, I receive the following error:

    Windows 10 will not run on this PC
    Here is why Windows 10 can't be installed:

    The disk layout for UEFI firmware isn't supported.

    I've attached a screen from disk management, in case it is of any use.

    Creator's Update- Disk Layout for UEFI firmware isn't supported error-dskmgmt.png
      My Computer


  2. Posts : 5,478
    2004
       #2

    Which disk did you save the ISO on? Try putting it on C if it wasn't.
      My Computer


  3. Posts : 5
    Windows 10 x64
    Thread Starter
       #3

    https://support.microsoft.com/en-gb/...rs-update-here

    I've not been using an ISO, just been using the executable update assistant here.
      My Computer


  4. Posts : 5,478
    2004
       #4

    You disk layout looks OK to me and is BIOS not UEFI so I don't know why you got that error.

    You could try using the Media Creation Tool from here (click on "Download Tool" not "Upgrade Now")

    Download Windows 10
      My Computer


  5. Posts : 5
    Windows 10 x64
    Thread Starter
       #5

    Creator's Update- Disk Layout for UEFI firmware isn't supported error-error.png
    Same error unfortunately.
      My Computer


  6. Posts : 5,478
    2004
       #6

    Things I can think of

    1. check your disks are mbr or gpt - specifically disk 1 should be mbr

    Go to cmd > diskpart > list disk if there is a * they are gpt
    Code:
    PS C:\WINDOWS\system32> diskpart
    
    Microsoft DiskPart version 10.0.15063.0
    
    Copyright (C) Microsoft Corporation.
    On computer: X201
    
    DISKPART> list disk
    
      Disk ###  Status         Size     Free     Dyn  Gpt
      --------  -------------  -------  -------  ---  ---
      Disk 0    Online          232 GB      0 B
      Disk 1    Online         3781 MB  4032 KB        *
    
    DISKPART>
    2. Go into your BIOS disable UEFI (if it isn't)

    3. Unplug the other drives except for #1
      My Computer


  7. Posts : 5
    Windows 10 x64
    Thread Starter
       #7

    The C Drive (Disc 1) is not GPT, according to diskpart. I'll have a shot at the bios.
      My Computer


  8. Posts : 5,478
    2004
       #8

    Perhaps it is getting in a muddle and trying to install to / check disk 0 (if that is GPT). If so disconnecting may help.

    There are a lot of results googling the error but many seem to suggest converting your boot disk to gpt which seems a bit extreme. This was the clearest one I saw anyway. Windows can't be installed because this PC has an unsupported disk layout for UEFI Firmware. WTF? : Windows10
      My Computer


  9. Posts : 5
    Windows 10 x64
    Thread Starter
       #9

    Tried the above, but no luck. Decided to leave things as they are for the time being, and perhaps upgrade to creator's whenever I next do a clean reinstall on this machine- but thanks for the help.
      My Computer


  10. Posts : 5,816
    Win 11 Pro (x64) 21H2
       #10

    cadellin said:
    Hi there. Applying the creators update manually to an existing Win 10 x64 installation, or at least attempting to. When using the manual upgrade exe, I receive the following error:

    Windows 10 will not run on this PC
    Here is why Windows 10 can't be installed:

    The disk layout for UEFI firmware isn't supported.

    I've attached a screen from disk management, in case it is of any use.

    Creator's Update- Disk Layout for UEFI firmware isn't supported error-dskmgmt.png
    Looking at your supplied Disk Management panel I can see your drive isn't formatted for UEFI. If it was it would look something like mine (or anyone else installed under UEFI)...

    Creator's Update- Disk Layout for UEFI firmware isn't supported error-uefi-partitions.jpg

    If you study the above panel you'll notice two small UEFI partitions (450 & 100meg). There's actually a third smaller one (16meg) but it is hidden in Disk management. These partitions are needed (actually created during install) when installing Windows in UEFI mode. The fact that you don't have them says they were deleted after 10 install, or 10 (Windows) was installed on the machine in legacy mode.

    If you want to install Windows in UEFI mode you should follow this tutorial... Clean Install Windows 10 and go to step 13

    You might see this post as well... How can I install w10 in uefi mode

    Honestly I can't see why you wouldn't install in UEFI mode as I think Windows 10 performs best there. I also think that if you need to remove all those small partitions for "space" considerations, you might think about upgrading your hard drive if you really need that 566 meg of space back.

    My two cents.
      My Computers


 

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