Windows 10: Cannot find room for the EFI system partition

Discus and support Cannot find room for the EFI system partition in Windows 10 Gaming to solve the problem; So i want change my pc mbr to gpt and then legacy to uefi bios mode and accidentally this happens , what should i do now ? easy explanation pls?... Discussion in 'Windows 10 Gaming' started by shafi gold, Feb 26, 2025.

  1. Cannot find room for the EFI system partition


    So i want change my pc mbr to gpt and then legacy to uefi bios mode and accidentally this happens , what should i do now ? easy explanation pls? thanks!!

    :)
     
    shafi gold, Feb 26, 2025
    #1

  2. Cannot find room for the EFI system partition.

    Hi Artti,



    Welcome to Microsoft Community.

    Some community members speculate that such phenomena may be related to the physical structure of the disk/partition.

    Some community members speculated that the disk may need to be revalidated.

    Some community members speculated that the EFI partition may need to be configured manually.


    The Answer community is primarily involved in general guidance at the usage level for products.

    I wish I could handle your problem, however, analyzing issues related to MBR2GPT requires deeper knowledge of the underlying workings of the MBR2GPT tool, which is beyond our technical reserves.

    The content in the following links described basic information related to the MBR2GPT tool.

    Change a Master Boot Record (MBR) into a GUID partition table (GPT) disk | Microsoft Learn

    MBR2GPT - Windows Deployment | Microsoft Learn

    The issue on MBR2GPT is out of reach of the response support community.

    For further professional assistance, it is more suitable for publishing on Microsoft Learn (English only), you can click on "Ask a question", there are experts who can provide more professional insights in that place

    Here is a link to the forum where you can raise specific scenarios and share your idea to help analyze the problem.

    Sincerely hope that your question will be dealt with appropriately after contact the correct department.



    Thanks for your patience and cooperation.

    Best Regards,

    | Microsoft Community Technical Support
     
    Kyo - MSFT, Feb 26, 2025
    #2
  3. 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, Feb 26, 2025
    #3
  4. Ashtr33 Win User

    Cannot find room for the EFI system partition

    How do find room for EFI system partition?

    I've been trying to convert my Legacy bios to UEFI, to access secure boot and update to windows 11. I've been trying with to convert my disk using the mbr2gpt method, but I keep getting Can not find room for the EFI system partition. I've tried shrinking my C: and have 5gb of unallocated space, yet it is not working.
     
    Ashtr33, Feb 26, 2025
    #4
Thema:

Cannot find room for the EFI system partition

Loading...
  1. Cannot find room for the EFI system partition - Similar Threads - Cannot find room

  2. Cannot find room for the EFI system partition

    in Windows 10 Software and Apps
    Cannot find room for the EFI system partition: So i want change my pc mbr to gpt and then legacy to uefi bios mode and accidentally this happens , what should i do now ? easy explanation pls? thanks!!...
  3. Cannot find room for the EFI system partition

    in Windows 10 Installation and Upgrade
    Cannot find room for the EFI system partition: So i want change my pc mbr to gpt and then legacy to uefi bios mode and accidentally this happens , what should i do now ? easy explanation pls? thanks!!...
  4. Cannot find room for the EFI system partition.

    in Windows 10 Installation and Upgrade
    Cannot find room for the EFI system partition.: C:\WINDOWS\system32>MBR2GPT.EXE /convert /allowfullos MBR2GPT will now attempt to convert the default book disk. If conversion is successful the disk can only be booted in GPT mode. These changes cannot be undone! MBR2GPT: Attempting to convert disk 1 MBR2GPT: Retrieving...
  5. Cannot find room for the EFI system partition

    in Windows 10 Gaming
    Cannot find room for the EFI system partition: Hey everyone! So I've been trying to upgrade my Windows 10 to Windows 11.Downloaded PC Health Check --> Secure boot is missingNeed to change mi disk to GPT this lead me to MBR2GPT /convert /allowFullOsI get the Cannot find room for the EFI system partition in Command Propt...
  6. Cannot find room for the EFI system partition

    in Windows 10 Software and Apps
    Cannot find room for the EFI system partition: Hey everyone! So I've been trying to upgrade my Windows 10 to Windows 11.Downloaded PC Health Check --> Secure boot is missingNeed to change mi disk to GPT this lead me to MBR2GPT /convert /allowFullOsI get the Cannot find room for the EFI system partition in Command Propt...
  7. Cannot find room for the EFI system partition

    in Windows 10 Installation and Upgrade
    Cannot find room for the EFI system partition: Hey everyone! So I've been trying to upgrade my Windows 10 to Windows 11.Downloaded PC Health Check --> Secure boot is missingNeed to change mi disk to GPT this lead me to MBR2GPT /convert /allowFullOsI get the Cannot find room for the EFI system partition in Command Propt...
  8. cannot find room for the EFI system partition

    in Windows 10 Gaming
    cannot find room for the EFI system partition: Hey guys!So I've been notified that Windows 11 is available to upgrade to, but just as many other people, I cannot upgrade due to still being on Legecy MBR and TPM off. I tried the MBR2GPT cmd method and validation is successfull, but upon trying to convert I always get the...
  9. cannot find room for the EFI system partition

    in Windows 10 Software and Apps
    cannot find room for the EFI system partition: Hey guys!So I've been notified that Windows 11 is available to upgrade to, but just as many other people, I cannot upgrade due to still being on Legecy MBR and TPM off. I tried the MBR2GPT cmd method and validation is successfull, but upon trying to convert I always get the...
  10. Cannot find room for the EFI system partition

    in Windows 10 Installation and Upgrade
    Cannot find room for the EFI system partition: Hello, Microsoft forum people.Recently I've been trying to update from legacy bios to UEFI using mbr2gpt command. However non of my attempt actually succeeded. I kept getting an "Cannot find room for the EFI system partition" error over and over again. I tried all the...