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Zachary-Cavanell's avatar
Zachary-Cavanell
Bronze Contributor
Apr 05, 2017

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...
windows 10
sahil s's avatar
sahil s
Copper Contributor
Dec 26, 2017

Hi,I can't convert it from MBR to GPT.

This is the error:

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

kovan gurgo's avatar
kovan gurgo
Copper Contributor
Apr 18, 2018

I Just resolved the validation issue. 

basically you must not have more than three partitions and not any free space left on the hard drive.
if you check the list of partition on DISKPART you will see that even the free space is listed as a partition.
you can use tools like disk manager (built-in windows) or minitool to resize the current partitions to take up the left over free space then validate mbr2gpt again. 

hopefully it works for you too :) 

 

let me know

  • Deleted's avatar
    Deleted
    Apr 18, 2018

    Here is what my HD looks like using DISKPART:

     

    DISKPART> list volume

    Volume ### Ltr Label Fs Type Size Status Info
    ---------- --- ----------- ----- ---------- ------- --------- --------
    Volume 0 E DVD-ROM 0 B No Media
    Volume 1 C 790 SSD NTFS Partition 449 GB Healthy System
    Volume 2 D Recovery NTFS Partition 15 GB Healthy
    Volume 3 RAW Partition 856 MB Healthy Hidden
    Volume 4 RAW Partition 455 MB Healthy Hidden

     

    And the attached PDF shows what it looks like using the Disk Management extension of the Computer Management console.

     

    How would you suggest dealing with these partitions in order to be able to sucessfully run MRS2GPT?

     

  • Deleted's avatar
    Deleted
    Apr 18, 2018

    Here is what my HD looks like using DISKPART:

     

    DISKPART> list volume

    Volume ### Ltr Label Fs Type Size Status Info
    ---------- --- ----------- ----- ---------- ------- --------- --------
    Volume 0 E DVD-ROM 0 B No Media
    Volume 1 C 790 SSD NTFS Partition 449 GB Healthy System
    Volume 2 D Recovery NTFS Partition 15 GB Healthy
    Volume 3 RAW Partition 856 MB Healthy Hidden
    Volume 4 RAW Partition 455 MB Healthy Hidden

     

    And the attached PDF shows what it looks like using the Disk Management extension of the Computer Management console.

     

    How would you suggest dealing with these partitions in order to be able to sucessfully run MRS2GPT?

     

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