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Shifting from BIOS to UEFI with the Windows 10 Creators Update MBR2GPT disk conversion tool
Comprehensive yet quick video overview that explains how you can safely and non-destructively convert a Windows 10 machine from legacy BIOS to UEFI disk partitioning; and how you can automate the con...
Error while validating Disk
C:\WINDOWS\system32>mbr2gpt /allowFullOS /validate
MBR2GPT: Attempting to validate disk 0
MBR2GPT: Retrieving layout of disk
MBR2GPT: Validating layout, disk sector size is: 512 bytes
Disk layout validation failed for disk 0
Check your setupact.log & setuperr.log files in %Windir%\Panther. There should be some verbose information in one of those logs.
-Mike