By Emily / Last Updated May 12, 2023

Why convert MBR SSD to GPT?

Both MBR and GPT are the style of partition. For MBR disk, it only sustains four primary partitions and the size of a partition is 2TB. If you need to create more partitions, you can set the fourth partition as an extended partition, and then you are allowed to build more partitions or logical drives. However, GPT has unique identifies (GUID) to define the partition. With GPT, you can make unlimited partitions on the hard disk. This can help you take full advantage of the disk space.

What's more, based on the official declaration of Microsoft,  the UEFI is required if you choose to upgrade Windows 10 to Windows 11, that means you have to choose GPT disk for the Windows 11.


Additionally, the partition on GPT disk has built-in backup which is stored on the end of the disk while the original one is stored on the start. When one of the two is destroyed, you can restore it with the other.  From the above differences between MBR and GPT,  it is easy to conclude that GPT has obvious advantages over MBR disks. So, many users choose to convert SSD from MBR to GPT. 

Can I change my SSD from MBR to GPT? The answer is yes. Here we recommend AOMEI Partition Assistant Professional, powerful disk partition management software to you. With the help of the software, you can convert SSD to GPT easily without deleting partitions. Besides, it has many other features which can be widely used in your work such as resizing partitions, merging partitions, allocating free space, windows to go creator, and more. The following will show you the detail of how to change SSD to GPT without damaging data.

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Before you do: If you want to convert the boot disk from MBR to GPT, make sure your motherboard supports UEFI.

Step1: Install and launch it. Select the SSD MBR disk you want to convert and right-click it. Then choose Convert to GPT or click the MBR disk and select Convert to GPT from the right column.

Convert Data Disk to GPT

Step2: Click OK to continue.

OK to GPT Data Disk

Step3: In order to save the change, click the Apply button on the toolbar.

Apply to GPT Data Disk

With AOMEI Partition Assistant software, you can easily convert HDD or SSD from MBR to GPT, or GPT to MBR.  If you prefer to use Windows snap-in tools like Disk Management or DiskPart.exe, you should note they can only convert an empty disk between MBR and GPT. So, to perform the conversion smoothly, you have to delete all partitions and data ahead of time. To avoid losing data, you can back up the disk first of all.


Therefore, AOMEI Partition Assistant is a better choice than Windows Disk Management and DiskPart.exe tools when it comes to converting SSD from MBR to GPT. Besides this feature, it also allows you to convert FAT32 to NTFS, convert dynamic disk to basic one, change primary partition to logical partition, etc. And you can turn to Server edition if your PC is running with Windows Server Edition.