Convert MBR format system disk to GPT format

mbr2gpt.exe











1.  start -> settings -> update & security -> recovery -> advanced startup












2. choose an option -> troubleshoot -> advanced options -> command prompts











3.

X:\Windows\system32\> mbr2gpt /validate








4.

X:\Windows\system32\>mb2gpt /convert








5. Reboot and press Del or F10 (or F1,F2 for Laptop) to BIOS configuration to change BIOS to EFI boot mode 

On VMware:


 









5. Have added 100MB EFI sector between C: and Recovery partition











References

https://www.windowscentral.com/how-convert-mbr-disk-gpt-move-bios-uefi-windows-10

https://docs.microsoft.com/zh-tw/windows/deployment/mbr-to-gpt





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