Change Disk from MBR to GPT

About MBR and GPT Disk

MBR and GPT are two common partitioning formats of computer hard disk. An MBR (short for Master Boot Record) disk can support at most 4 primary partitions or 3 primary partitions plus 1 extended partition. And the size of single partition can amount to 2TB. GPT – GUID Partition Table, is a new standard of disk partition table. It can support up to 128 partitions in Windows and the size of the largest partition is 18 EB. What’s more, GPT has backup partition table which is a deficiency in MBR. These are the main differences between MBR and GPT disk. To get to know more of their differences, view GPT VS. MBR.
As discussed above, in terms of the number of partition and the maximum size of single partition, GPT disk gains an advantage over MBR disk. Therefore, a growing number of computer users intend to convert MBR to GPT.

How to Change Disk from MBR to GPT without Data Loss

Actually, with the help of professional disk assistant – MiniTool Partition Wizard, users can convert MBR to GPT successfully and safely. All they need to do is follow the demonstration below.

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Step 1. Choose the MBR disk which needs to be converted. Then, you get 3 locations to select “Convert MBR Disk to GPT Disk” function.
1. Click it in the “Convert Disk” list.
2. Right-click Disk 3 and activate it from the context menu.
3. Click it from the drop-down list of “Disk” menu on the top.
Change Disk from MBR to GPT-1
Step 2. Click “Apply” to apply the operations.
Step 3. Click “Yes” in the pop-out interface to execute the pending changes.
Note: MiniTool Partition Wizard Free Edition can only help users convert the MBR disk which doesn’t contain system partition to GPT disk. If you have a system disk to be converted to GPT, you should use MiniTool Partition Wizard Pro instead. Besides, make sure your main board supports UEFI boot.

With the clear instruction and demonstration, we believe that users have a clear understanding of how to convert MBR disk to GPT disk without data loss. In addition, this software also helps to change disk from GPT to MBR. View the Help page to know more about MiniTool Partition Wizard.

Another Way to Convert MBR to GPT

Although we have MiniTool Partition Wizard to help us convert MBR to GPT, some users don’t want any third-party software. In this case, they still have another choice, provided that it is a data disk to be converted to GPT.
Go to Disk Management and find the MBR disk to be converted. By right-clicking on it users will see the option “Convert to GPT Disk” is grayed out. The solution here is to delete all volumes on the disk and then do the conversion. Hence, if there are any important files on the drive, do a backup first.
Change Disk from MBR to GPT-2
Change Disk from MBR to GPT-3
This is the end of how to change Disk from MBR to GPT using two utilities. Now it is your turn to have a try!


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