Windows 10: MBR2GPT Failing To Create EFI Partition

Discus and support MBR2GPT Failing To Create EFI Partition in Windows 10 BSOD Crashes and Debugging to solve the problem; Windows 10 Pro 21H1 - Samsung SSD 850 EVO 250 GB with 173 GB free space perfectly healthy according to Samsung MagicianI've been battling away with... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by brightspark70, Sep 10, 2021.

  1. BRIGHTSPARK70
    brightspark70 Win User

    MBR2GPT Failing To Create EFI Partition


    Windows 10 Pro 21H1 - Samsung SSD 850 EVO 250 GB with 173 GB free space perfectly healthy according to Samsung MagicianI've been battling away with this for days now and it's driving me crazy- trying to convert an MBR system drive to GPT. In the end I performed a repair install via Windows 10 ISO. Everything seems fine- "sfc /scannow" reports zero corruptions and "Dism /Online /Cleanup-Image /RestoreHealth" completes successfully with no errors.In Advanced Mode > Command Prompt, validation is always successful but, when I input the command to convert, it gets so far and then the message "

    :)
     
    brightspark70, Sep 10, 2021
    #1
  2. RONHAJAJ
    RonHajaj Win User

    MBR2GPT fails with error - Cannot find room for the EFI system partition.

    Regarding this image, which partition should I extend?

    The problem wasn't that I didn't have enough space to update, it was the MBR2GPT error: "cannot find room for the EFI system partition"
     
    RonHajaj, Sep 11, 2021
    #2
  3. RONHAJAJ
    RonHajaj Win User
    MBR2GPT fails with error - Cannot find room for the EFI system partition.

    Hi,

    Would love to get some help

    I'm trying to install the new Win10 update but then I get this error: "windows can't be installed because this pc has an unsupported disk layout for UEFI firmware"

    Afterward I run MBR2GPT run it in WINPE but I get this error: "cannot find room for the EFI system partition"

    I have two partitions on this disk: 1. System. 2. Recovery and 100mb unallocated.

    When I try to shrink volume on Disk Management I get 0 size of available shrink space in MB.

    The disk has plenty of free space though.

    Any ideas?
     
    RonHajaj, Sep 11, 2021
    #3
  4. TROG100
    trog100 Win User

    MBR2GPT Failing To Create EFI Partition

    Move EFI partition

    its to enable win 10 to update to its anniversary edition.. it cant do this due to lack of C drive space i have had a quick try with the trial version of easus.. it didnt seem to be able to do what i want..

    i am assuming i cant just delete the efi partition but maybe i could.. as yet i havnt even figured out how to get into the bios of the thing.. maybe that should be my next step.. *Smile MBR2GPT Failing To Create EFI Partition :)

    diskpart could probably do it but figuring out how (it aint that user friendly) might be difficult without step by step instructions..

    trog
     
    trog100, Sep 11, 2021
    #4
Thema:

MBR2GPT Failing To Create EFI Partition

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