Magic Partition Recovery

Software Blog How to convert MBR to GPT without data loss. Part 2  

East Imperial Soft

October 12, 2017

How to convert MBR to GPT without losing data. Part 2   

In the first part of this article, we consider the definitions of MBR and GPT, what is the difference and which technology is better for the hard drive. In this article we would like to consider the practical part of the question. How to convert MBR to GPT disk without losing data in Windows 10? There are several methods for converting MBR to GPT.

Method 1. Command line

You can switch from MBR to GPT (and vice versa) using the Diskpart command line.

1. Press the Win + R key on your keyboard to open a command prompt and start it as an administrator. Type “diskpart” and press Enter. Then a command window will appear. If the disk does not contain partitions or volumes, go to step 5.

2. Enter “list disk” and press “Enter”. Record the number of the disc that you want to convert.

3. Enter “select drive” and press “Enter”.

4. Type “clean” and press Enter to delete all partitions or volumes on the disk.

5. Click “convert gpt” and click “Enter”.

6. Type “exit” and press Enter to exit cmd.

Method 2. Disk Management

Disk management is a built-in tool for Windows 10. It allows you to manage partitions of the hard disk without rebooting the system, convert them to MBR or GPT.

1. Click “This Computer”> “Management”> “Disk Management”.

2. Right-click on the disk that you want to convert. You will see the inactive function “Convert to GPT disk”.

Note: If your MBR hard drive has a partition or volume that you can convert, right-click any volume on the disk, and then click “Delete Partition” or “Delete Volume”.

Method 3. Convert MBR to GPT without losing data using Gptgen

Gptgen is a nondestructive command-line utility that can convert partitions of a hard disk. Steps:

1. Press Win + R to open a command prompt and start it as an administrator.

2. In the Command Prompt window, type:

gptgen.exe \\. \\ physicaldrive1

Then you will see 2 files: primary.img and secondary.img. They contain data that will be written to disk.

3. To change the partition, just type the following command line:

gptgen.exe -w \\. \\physicaldrive1

Now you can successfully convert MBR to GPT.

Method 4: Change MBR to GPT without losing data using MBR2GPT

MBR2GPT is another command-line tool available in Windows 10. It can simply be launched from the Advanced Recovery Command Prompt command line through the Windows Preinstallation Environment (WinPE). The method is rather complicated, so you can get more detailed information on Microsoft’s website.

With the above methods, you can easily convert MBR to GPT in Windows 10 without losing data.

As you can see, all methods of conversion are applicable in Windows 10. These methods successfully convert MBR to GPT without any data loss. But to date, there are many reasons for data loss. We wrote about this in one of our previous articles. And if at the moment you already need to restore any information or data from any storage media (hard disk, flash drive, external hdd, etc.), it is easily possible with the Magic Partition Recovery utility. Magic Partition Recovery solves two main problems: it recovers any deleted files and corrupted, inaccessible disk structures.

A trial version of the data recovery software can be downloaded here.