As GPT disk becomes more and more popular, many people want to use GPT disk instead of MBR. So many users wonder: is there a way to convert MBR disk to GPT disk without any data loss? In fact, users can easily convert MBR disk to GPT as long as they use a professional partition magic. This article will show you how to convert MBR to GPT with a free partition magic.

MBR and GPT are two different partition styles (click here to see their differences). And GPT disk is becoming more and more popular now due to its superior features, and many people convert their MBR disk to GPT disk.

You may wonder: what are the advantages of GPT disk? How to convert MBR to GPT Windows 10? Will convert MBR to GPT erase all the disk partitions? If you want to know the answers to these questions, read the following contents.

The Advantages of GPT Disk

Compared with an MBR disk, a GPT disk has the following advantages.

1. You can create more than 4 primary partitions on a GPT disk.

On a GPT disk, you can create up to 128 primary partitions while on an MBR disk (See: How to Create More Than 4 Partitions on MBR Disk in Windows 10), you are only allowed to create four primary partitions at most or 3 primary partitions and one extended partition (many logical partitions can be created).

2. GPT disk supports up to 18EB in capacity.

GPT disk supports up to 18EB in capacity but MBR disk only supports up to 2TB. If your disk is larger than 2TB, you will find the rest disk space becomesUnallocatedin Disk Management as Windows only recognizes 2TB for an MBR disk.

3. GPT disk has higher security than MBR disk.

Once the partition table is corrupted, MBR disk is unusable. While for GPT disk, it has primary GUID partition table header at the beginning of the hard disk and backup GUID partition table header at the end of the disk. Once errors are detected on primary GPT, it is allowed to recover the whole partition table from the backup GUID partition table header.

Above all, if you want to break those limits on MBR disk or if you have very important files on your disk and are afraid of data loss, you’d better convert MBR to GPT.

Ways to Convert MBR to GPT Windows 10

In general, there are 3 ways to convert MBR to GPT:

1. Convert MBR to GPT Windows 10 with Disk Management.

Open Disk Management, right-click the disk that you want to convert, and delete all volumes on the disk. Then, select the disk and right-click it to chooseConvert to GPT diskfeature.

2. Convert MBR to GPT via Diskpart.

First of all, users need to pay attention to the number of disk which will be converted to GPT. Then, take these operations: open command prompt, type the following commands in Command Prompt, and press Enter after each command.


list disk

select disk * (* represents the number of the target disk)


convert gpt

3. Convert MBR to GPT without data loss with third-party Partitioning Tool.

Although the first two methods can change MBR to GPT Windows 10, it will require you to delete all existing partitions on the disk, which will cause data loss. Since no one wants to delete any partition on the disk, in this case, it is recommended to use a free third-party partition manager to convert MBR to GPT.

Here, we take the free partition manager MiniTool Partition Wizard for example. Let’s see how to convert MBR to GPT without losing data by using MiniTool Partition Wizard Free Edition.

How to Convert MBR to GPT Without Data Loss with MiniTool Partition Wizard

Note: If you want to convert the system disk to GPT, you need to get MiniTool Partition Wizard Professional Edition. If you want to boot from the GPT disk successfully, UEFI mode should be supported and enabled. Besides, you’d better use MiniTool Partition Wizard Bootable Edition to convert the system disk and make a backup of the system disk beforehand.

Here I take a non-system disk as an example to show you how to convert MBR to GPT without data loss.

Step 1. Download MiniTool Partition Wizard Free Edition by clicking the following button, install it on your computer, and launch it to get the main interface.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Step 2. Select the target disk and choose Convert MBR Disk to GPT Disk from the left pane.

convert to GPT disk in Partition Wizard

Step 3. This interface is the preview of conversion result. ClickApply to allow the change.

apply to save conversion result

“I successfully converted my MBR disk to GPT disk Windows 10 without data loss by using MiniTool Partition Wizard Free Edition. People who are afraid of data loss when converting to GPT disk may try this partition magic.”Click to Tweet

Bottom Line

You see, to change MBR to GPT without data loss is very simple by using MiniTool Partition Wizard Free Edition. If you want to enjoy the advantages of GPT disk, try using MiniTool Partition Wizard to convert your disk now!

If you have any questions about how to convert MBR to GPT without losing data or if you have other better solutions, you can leave a message on the following comment zone and we will reply as soon as possible. If you need any help when using MiniTool software, you may contact us via [email protected].

  • linkedin
  • reddit