Mbr to gpt convert failed

Anonymous
2022-03-25T12:12:38+00:00

Hello I just upgrade my PC from p8z77vlx to ProArt z690 creator and I do convert mbr to gpt for my existing Windows 10 21h2 so I can use uefi bios, the problem is the conversion failed and I can't boot to Windows.

Anything I can do to be able to boot and repair the gpt partition ?

Or I need to reinstall Windows ?

Windows for home | Windows 10 | Install and upgrade

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  1. DaveM121 935.1K Reputation points Independent Advisor
    2022-03-30T07:46:39+00:00

    Hi DevotedOne89

    Boot Option 1 on the Boot tab is set to boot form your internal hard drive (Windows Boot Manager) can you set that to the USB?

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  2. Anonymous
    2022-03-30T07:58:45+00:00

    Yes, already but still get that error

    That's why I switch back to Windows one which broken one in hardisk 1.

    I don't know what missing in my USB that prevent me from booting it in uefi mode

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  3. DaveM121 935.1K Reputation points Independent Advisor
    2022-03-30T08:06:37+00:00

    Hi DevotedOne89

    Is that USB newly created with the media creation tool, or an old USB that you are using?

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  4. Anonymous
    2022-03-30T08:17:28+00:00

    I bought it and have use it to repair windows that can't boot after I failed convert mbr to gpt

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  5. DaveM121 935.1K Reputation points Independent Advisor
    2022-03-30T08:21:19+00:00

    Hi DevotedOne89

    Th best option would be to create a new bootable USB, that USB you purchased may be for Legacy BIOS only, if you create a new USB, that will be UEFI compatible.

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