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I've seen similar posts about this but was not enough for me to resolve my issue.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
The error code (0x80070057) during the format operation can be caused by a bad disk.
Anyway, let's try converting to GPT via WinRE.
Create a USB setup disk.
Boot from the USB setup disk and access WinRE.
In WinRE Command Prompt, run MBR2GPT. https://answers.microsoft.com/en-us/windows/forum/all/convert-an-existing-windows-10-installation-from/aa8c2de3-460b-4a8c-b30b-641405f800d7
It's UEFI boot.
But the command prompt output is cut off. Please share the entire output.
Here's the cmd output
Run:
bcdboot C:\Windows /s V: /f ALL
See if you can convert the disk to GPT.
(or)
If that doesn't help, switch to legacy boot mode and boot into Windows. Mark C drive as active. Delete partiton V and run MBR2GPT.
I tried to switch to legacy mode. It didnt seem to work.
