How to Convert MBR to GPT without Data Loss in Windows 11/10 – Guide

Windows 11 minimum requirements

MBR and GPT are two different partition styles commonly used on storage devices such as computer hard drives. MBR is more flexible and compatible with modern hardware than the GPT partition style, which has a limit on disk size and number of partitions. On an MBR disk, users can create up for 4 partitions. While users can create up for 128 partitions on GPT disks.

Convert MBR to GPT without data loss

Microsoft’s decision to not offer a GPT conversion option for MBR disks is a major challenge that can be overcome with some effort. Without partitions or volumes present on the disk, it is impossible to convert without data loss.

How do I change from MBR to GPT in Windows 11/10?

There are a few ways to convert MBR to GPT without data loss. One way is to use a software program such as Windows Diskpart or Macrium Reflect. Another way is to use a hardware conversion tool such as MBRTOGPT or GPTtoMBR.

Diskpart is a Windows utility that allows you to partition your hard drive into two or more partitions. The first partition is the operating system partition and the second partition is for your data. Diskpart can help you create a GPT disk image that you can use to format your hard drive into a GPT format.

The MBR (Master Boot Record) is a data structure in a computer that stores the bootloader and other system files. When a computer starts up, the MBR loads these files and sets up the system. If you lose your MBR, your computer may not start up correctly or you may experience data loss. To prevent this from happening, you can convert your MBR to GPT (GUID Partition Table) without losing any data.

If you want to convert your MBR disk to GPT without losing data, there are a few third-party freeware programs that can help. ..

The MBR2GPT disk conversion tool can help you convert your MBR drive to a GPT drive. This will make it easier for you to access your data and files on new computers.

Before starting, it’s always a good idea to go back up your data to a safe place.

Convert MBR to GPT using Diskpart

  1. Make sure you have a recent backup of your data.
  2. Use the DISKPART command to create a bootable diskette or USB drive with your data on it.
  3. Boot from the diskette or USB drive and use the operating system’s recovery tools to restore your data. ..

The DISKPART command can be used to view and manage your disks.

Then type the following to convert a disk number to GPT: Convert Disk Number to GPT

Then type the disk number you want to view.

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Convert MBR to GPT without data loss using Gptgen

gptgen -w my-new-harddisk.mbr my-old-harddisk.gpt

Disk X is reported to be in a degraded state by the disk management console or DISKPART utility. ..

The -w option causes gptgen to write the generated GUID partition tables to disk, otherwise the primary table will be written to a file called “primary.img”, and the secondary table to “secondary.img”, in the directory that the program was invoked from.

To write the tables to disk, you can use dd.

Convert MBR to GPT without losing data using Partition Assistant

The last method is to use a tool called AOMEI Partition Assistant Lite Edition. It is a free all-in-one partition management software. This tool feature can help you convert a disk with GPT or MBR style data without data loss.

To convert a disk to MBR/GPT disk

Convert the disk to a format that is compatible with your computer.

Convert the disk to GPT/MBR.

If you are sure you want to continue, click “OK” to continue. If you have any questions or concerns, please contact customer service at 1-800-932-2414. ..

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Use MBR2GPT Disk Conversion Tool

  1. Open the command prompt and type “mbr2gpt”
  2. The MBR2GPT.exe tool will start and will convert the MBR to GPT.
  3. Once the conversion is complete, you can use the “gpt” option to verify that the GPT is correct.

Boot to Advanced Boot Options, and then select Troubleshoot. On the next screen, select Advanced Options. On the next screen, select the Command Prompt screen. ..

validateUnit() The validateUnit() command validates that the unit meets the requirements. ..

sudo parted /dev/sda sudo mklabel gpt sudo parted /dev/sda sudo mount -t msdos /dev/sda1 gpt To convert a drive from MBR to GPT:

  1. Run the following command to convert the drive from MBR to GPT: sudo parted /dev/sda
  2. Use the mklabel command to create a new label for the GPT partition: sudo parted /dev/sda
  3. Use the parted command to create a new partition on the drive using the msdos format: sudo parted /dev/sda
  4. Mount the newly created partition using the mount command: sudo mount -t msdos /dev/sda1 gpt ..

Final note

This guide will show you how to convert the MBR (Master Boot Record) on your computer’s hard drive to the GPT (GUID Partition Table) format without data loss. This is necessary if you want to install a new operating system or upgrade your current one. ..