Trying to Convert my Windows installation to UEFI using the command prompt mbr2gpt, what to do next ?

Kossovsky Loïc 0 Reputation points
2025-10-11T19:46:26.7833333+00:00

Hello, I am following the instructions from the third answer here, starting with "Please try running mbr2gpt /validate /allowFullOS" : https://learn.microsoft.com/en-us/answers/questions/3868066/i-cannot-get-secure-boot-enabled-i-have-tried-ever?page=1#answers

I was about about to run the conversion but I read : Important: Do NOT restart your computer yet.

So I guess there are some missing steps in the answer, please help I want to play BF6

edit : tags

Windows for home | Windows 10 | Windows update
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Kossovsky Loïc 0 Reputation points
2025-10-11T20:52:19.27+00:00

Hi,

I was looking for convert my MBR Windows to GPT and found the linked question.

I also found this tutorial wich helped me a lot : https://learn.microsoft.com/en-us/windows/deployment/mbr-to-gpt

Thanks for your help and time but I resolved my problem before your message

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  1. Ivan B 120.6K Reputation points Independent Advisor
    2025-10-11T20:57:43.5066667+00:00

    Hi ,

    I'm glad you managed to resolve it. You can always count on the Microsoft Q&A community. Have a good week and happy gaming.

    Give feedback if the information was useful or not.

    Thanks

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  2. Ivan B 120.6K Reputation points Independent Advisor
    2025-10-11T20:20:23.27+00:00

    Hi ,

    It was a little confusing before you stopped at the validation step. What was the result?

    You can try following the procedure explained here at Intel.

    https://www.intel.com/content/www/us/en/support/articles/000024558/memory-and-storage/intel-optane-memory.html#primary-content

    Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

    Give feedback if the information was useful or not.

    Thanks

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