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How to Convert MBR Hard Disk to GPT without Data Loss

windows mbr disk gpt disk

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#1 connie22

connie22

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Posted 20 September 2017 - 12:00 PM

Why Convert MBR to GPT?

Nowadays, many Windows users have come up with the question of "how to convert MBR to GPT without data loss". Also, in many technical blogs and forums, this question can be found frequently as well. Why do they want to convert MBR to GPT? Let's see the difference between MBR and GPT as follows.

The MBR hard disk can only support 2TB hard disk at most, but GPT can support 256TB.
The users can only create four primary partitions or three primary partitions and one extended partition at most. The GPT can support 128 primary partitions at most.
Some booting main boards cannot support MBR as their system drive, such as MAC.
Some Windows operating systems cannot work with GPT hard disk, such as Windows 2000, XP, Windows 2003 32bit.

How to Convert MBR to GPT without Data Loss?

Diskpart

The Diskpart Command can achieve the goal by the following steps.

Step 1: click "Start", and input "diskpart" in the search box.
Step 2: input "list disk", and then select the MBR disk you want to convert by typing "select disk x" (x is the number of MBR disk)
Step 3: input "list partition", and then select the existing partitions and delete all of them by typing "delete partition x" command.
Step 4:: input "convert gpt".

Disk Management

You can enter Disk Management by right click My Computer > Manage > Disk Management and use it to convert MBR to GPT. But if there are partitions on the disk, you will find Convert to GPT Disk is grayed out. In this situation, only delete all the partitions you can continue the task.

AOMEI Partition Assistant: A Magic Conversion Tool

Step1: Launch the AOMEI Partition Assistant, right click the MBR disk you want to change and then choose Convert to GPT.
Step2: In the pop-up windows, click OK to continue.
Step3: Click Apply to perform the operation and then your disk will be changed into GPT partition style.

With the clear prompts, the operations of conversion can be completed easily and securely. Therefore, if you are still worrying about this problem, just Download this partition assistant, and resolve the tiresome issue at once. Click here to learn more features of AOMEI Partition Assistant Professional Edition.

Caution:  both Diskpart and Disk Management can only convert an empty MBR disk to GPT disk. Please backup your important data before using them.

Check the video guide from: http://www.disk-part...-data-loss.html






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