Disk Layout Validation Failed for Disk 0 MBR2GPT Error | Fixed 100%

This video will show how to fix this error “Disk Layout Validation Failed for Disk 0” while using MBR2GPT in windows 10 or windows 11.

For more and Updated details, read this topic:

MBR2GPT is a tool in newer windows 10 and windows 11 that can be used to convert the disk scheme from MBR to GPT system without losing data or reinstalling windows.
However, you have to take a backup copy before converting your disk to GPT.
Error sources:

Disk Layout Validation Failed for Disk 1 or disk 0, is an error message that indicates that your disk is not valid for conversion process due to one of the following errors:
1.The disk has more than 3 partitions
2. The disk has a logical, extended or dynamic partition
3. The disk doesn’t contain a valid boot partition.

Although there are many other error sources with different error messages. Examples of other error sources are, the disk is write-protected or BitLocker-locked, the disk has a GPT disk scheme, or windows partition doesn't have enough free disk space to create an EFI System Partition (ESP) if the MBR boot partition is not useable.
EFI partition usually requires 100 megabytes, but in 4k sector technology, it requires at least 260 megabytes.

How to Convert MBR to GPT (Complete Guide):

HOW TO IDENTIFY BOOT/EFI, WINDOWS AND RECOVERY PARTITIONS:

How to Create bootable USB in Mobile app ( Supports both GPT & MBR)

The Selected Disk Has an MBR Partition Table. On EFI Systems, Windows Can Only be installed to GPT Disks:

Cannot find room for the EFI system partition.
Why does MBR2GPT validate fail?
MBR2GPT: Attempting to validate disk 0
MBR2GPT: Retrieving layout of disk
How do I fix disk layout validation failed for disk 0?
MBR2GPT: Validating layout, disk sector size is: 512 bytes
Disk layout validation failed for disk 0disk layout validation failed for disk 1
mbr2gpt disk layout validation failed error
How do I fix MBR2GPT validation failed in Windows?
disk layout validation failed for disk 2
mbr2gpt disk layout validation failed - (disk sector size is: 512 bytes)
disk layout validation failed for disk 6
Will MBR2GPT delete data?
disk layout validation failed for disk 3
How do I change a disk from MBR to GPT?
mbr2gpt disk layout validation failed for disk

[LullaBuhBye]

I have been struggling with this on my PC for a few months. No article has covered what you covered and you actually solved my problem!!

Thank you very much :) I finally have Windows 11!

[JmanTheGamingMan]

This was so helpful. I have been trying to do this using forum posts from years ago with no avail. Clear, straight to the point, and most importantly, worked flawlessly. Thank you so much!

[bahatinamwija]

This quick video just saved me from so much headache! seeing that windows 10 will reach its end of life in a year, I was anxious to fix the secure boot pre-requisite that my system did not meet. After following multiple videos and reading through a whole forum thread, a quick search that brought up this video saved my day! keep up the great work.

[mansgetvexed]

FINALLY GOT IT SORTED, been stressing about this for months and each time I hit an hour mark I’d quit, amazing video thank you

[AlmightyPadre]

I really wish I could put more than one like under this video. It was so hard to me to find a correct instructions for my system, due to some particular properties which are different for my system. I really appreciate that you cover all of possible cases in cmd, thank you so much bro, bless you !!!

[guilleruiz]

Best tutorial ive seen!! Its been months of me trying to fix this until today! THANKS FOR THE HELP!!! it was GREAT!

[JEKitchens]

What do I do if I cloned my windows 7 onto a gpt drive I split into two separate partitions to dual boot? It show disk 2 as gpt even though the cloned partition is still mbr

[WorldZProductions]

My disk have 4 partitions
both are recoveries types, one 557mb and other 776mb (offset 464gb and 465gb)
and the primary is for the system (2438mb, offset 1024kb)
what should i do?

[SomethingEternal]

If they'd pointed to the log file in cmd, I'd have known my first partition was too close to the beginning of the disk an hour ago. Thank you for pointing that part out (where the log file is.)

[pablomoraes]

thanks for the tutorial, I was suffering for hours on this, it really helped 🤝

[worminspace]

you are a god send man. been at this for about an hour and your solution fixed it. thank you :)

[liliththeraccoon]

Thank you so much, more people need to know about this video because everywhere else was saying I had no choice to but to do a fresh install.

[Flappy]

The ONLY video I could find that actually solved my problem. THANK YOU!!! The absolute GOAT

[Steventrials]

i need to conver the disk 2 wich has the operative system but in default the cmd try with disk 0, how can i select disk 2 for the operation with mbr?

[wally]

Thanks for the video, but everything I try fails. Initially when I ran mbr2gpt it said not enough space(only the drive is being used), Disk 0(C drive) has 5.27 GB unallocated at the end. It validates okay but fails. So I created a simple vol V: but it failed activation, I transferred the boot files to it but then it failed validation . I going in circles here, any other suggestions. Can I create the required space by deleting files from the drive?

[romarsit]

well the 4 partition problen is not solvable. I have three partitions created by Windows (cannot be deleted without detriment to the system - System, Reserved, Recovery) and one primary. total is four. I am not sure if I can remove any without breaking the system since the first three were created by Windows 11 installation process.

[boojaballs]

Ok, so, I am here because it failed of course, but when i go to "LIST PART" on the command prompt, it shows me 4 different partitions. I cannot see any of these partitions in file explorer, and I can only see 2 of them in disk management. How would I delete a specific partitions. I could delete the c drive, but I dont know where I would copy it to, and I would lose all my data send help!!!

[vary]

I have just disk 0 and in here c-d windows in c my games are in the d d has 339/638 gb c has 208/292 gb and ı can’t do Mrb to gpt please help (sorry for my english)

[eualUis]

Mine says "check that you are running in a process with elevated privileges" and when i check task manager it says that cmd is not elevated, what's the solution?

[Synnipoe]

great video, thanks a bunch - just wondering, now I've created that V partition, do I have to keep it? Or can I get rid of it without it affecting anything?