Converting an SSD from MBR to GPT without losing data

The motherboard on a PC I use for video editing is failing so I have transferred the SSD to another working system with Windows 11.

While I was still able to boot the old system I uninstalled all graphics, sound, chipset and other peripheral drivers and backed up my licence to my Microsoft account. I was able to select the SSD to boot using the F12 menu on the new host Gigabyte motherboard and Windows 10 installed the new drivers for the different CPU and motherboard. After a couple of reboots and driver updates its now working fine in the new PC.

However it originally had Windows 7 Ultimate (free upgrade to Win10) installed as an MBR disk. I want to convert it to GPT so it is UEFI supported. The normal process of converting to GPT using command prompt or PowerShell results in data loss and I have software on the disk that is no longer available with the activation servers taken down. I have made an image of the disk with Macrium Reflect as a backup in case it fails to boot after conversion.

I believe I can use MBR2GPT.exe to convert the disk without losing data but many of the disk partition/imaging tools like Easus, Aomei or Minitools have the facility built in.
Below is a screenshot of Disk Manager with Disk 2 the MBR disk I want to convert. It has an OS, max of three partitions and space for the conversion which I believe are prerequisites for MBR2GPT to work.



Has anyone successfully converted the disk with any of these third part partition tools or should I try MBR2GPT first?
Many thanks
Fozzie

You should be able to do it with the licensed version of MiniTool Partition Wizard. How to Convert MBR Disk to GPT | MiniTool Tutorial - MiniTool Partition Wizard

With Aoemi, you need to purchase the Pro version to be able to change MBR/GPT. The free version does not have the capability.

With MBR2GPT, it works fine if you follow the instructions (readily available on Google) carefully.

can be done with diskgenius free.

rt click disk and select covert to guid partition table ( a.k.a. gpt )
click save all

The disk is now gpt. Next create esp ( a.k.a. Efi System Partition ) and populate it

rt click unallocated space and select create esp/msr (type in what sizes you want. Microsoft recommended esp minimum is 100mb)
( can delete the old system partition to create unallocated space to do the above )
click save all
it will ask if you want to format esp immediately answer yes
populate the esp partition using bcdboot command

Another tutorial (Using Minitool Partition Wizard) Worth the watch.


Also

MBR2GPT may be able to be performed by computer commands (without third party software) (without data loss)



Please run disk partition info > post a share link