Windows 10: Windows 10 - Cannot boot drive after using MBR2GPT command.

Discus and support Windows 10 - Cannot boot drive after using MBR2GPT command. in Windows 10 Software and Apps to solve the problem; Please, help me. I'm desperate. I ran the command, got the common readout along the lines of:"MBR2GPT: Attempting to validate disk 0MBR2GPT: Retrieving... Discussion in 'Windows 10 Software and Apps' started by JDM1990, Jan 19, 2025.

  1. JDM1990
    JDM1990 Win User

    Windows 10 - Cannot boot drive after using MBR2GPT command.


    Please, help me. I'm desperate. I ran the command, got the common readout along the lines of:"MBR2GPT: Attempting to validate disk 0MBR2GPT: Retrieving layout of diskMBR2GPT:MBR2GPT: Validating layout, disk sector size is: 512 bytesMBR2GPT: Trying to shrink the OS partitionMBR2GPT: Creating the EFI system partitionMBR2GPT: Installing the new boot filesMBR2GPT: Performing the layout conversionMBR2GPT: Migrating default boot entryMBR2GPT: Adding recovery boot entryMBR2GPT: Fixing drive letter mappingMBR2GPT: Conversion completed successfullyCall WinReReapir to repair WinREMBR2GPT: Failed to upda

    :)
     
    JDM1990, Jan 19, 2025
    #1
  2. NAVYLCDR
    NavyLCDR Win User

    MBR2GPT Error - Frustrated

    I think those steps will fail because mbr2gpt is looking for a system partition, which you just deleted previously.
     
    NavyLCDR, Jan 19, 2025
    #2
  3. BREE
    Bree Win User
    Installation media boots to command prompt

    I've just booted from known working install media to see exactly what it does when booting. The sequence of events is...

    1. Windows logo on a black screen
    2. circling dots appear beneath the logo
    3. light blue 'Please wait' screen with circling dots
    4. a command prompt window (very briefly)
    5. the initial Setup page appears

    Do you see steps 1-3? If so, it appears you have stopped at step 4, suggesting that something on the disc cannot be read.

    Does the disc boot properly in another machine? If so, try cleaning the laptop's drive lens then try booting from the disc again.

    If not, make new install media with Microsoft's Media Creation Tool, either as a bootable USB, on an ISO that you can burn to another disc. At Step 8 in Option One of this tutorial you can choose between making a USB or an ISO.

    Download Windows 10 ISO File
     
    Bree, Jan 19, 2025
    #3
  4. STTUBS
    sttubs Win User

    Windows 10 - Cannot boot drive after using MBR2GPT command.

    Windows 10 boot drive

    Is Windows 10 also limited to a max of 3Tb for a boot drive?
     
    sttubs, Jan 19, 2025
    #4
Thema:

Windows 10 - Cannot boot drive after using MBR2GPT command.

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