cannot create EFI system partition. Error: 0x000036B7 when running mbr2gpt.exe Cannot find what this error means

Anonymous
2023-04-20T13:07:21+00:00

On an ACER Aspire A315 laptop, running Windows 10, I'm trying to convert the BIOS from 'Legacy' to 'UEFI'. When I run mbr2gpt.exe I get "cannot create EFI system partition.  Error: 0x000036B7".

Can someone help me please?

Thanks

David

Windows for home | Windows 10 | Settings

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  1. Anonymous
    2024-01-02T16:49:43+00:00

    I can share good news!

    I shrinked the volume size not only by 200 MB but by 2GB via the "Datenträgerverwaltung".

    After this resizing, MBR2GPT worked well...

    Hope it helps also further users...

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  2. Anonymous
    2024-01-18T20:43:01+00:00

    You can also boot into WinRE and run "mbr2gpt /convert"

    Press F8 during boot > repair your computer > Troubleshoot > open CMD prompt > mbr2gpt /convert

    *Disclaimer*

    When you use mbr2gpt, this will likely add an EFI partition to the right side of the C: drive. This will prevent you from expanding your C: drive unless you use a 3rd party tool to move the EFI partition.

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  3. Anonymous
    2024-01-27T10:56:47+00:00

    Thanks, I used the free Aomei Partition Assistant,.. This worked.

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