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How to Migrate OS from MBR Disk to GPT Disk

Updated on Dec 10, 2018 by Brithny to Partition Master

Here we introduce you the simplest way ever to migrate OS MBR to GPT without changing partition style. Follow the tutorial guide and clone Windows 10/8/7 system disk and boot disk from MBR disk to GPT disk within 3 steps.

"Hi, do I need to convert GPT to MBR first if clone system drive from one MBR disk to another GPT disk? Now I plan to clone a Windows 7 installation disk (partition table MBR) to a 2TB (newly bought, not used yet) GPT hard drive, what's the best and fastest way to make it happen?"

There are many ways to migrate OS from HDD to SSD or migrate OS between two same type hard drives, for example, you can just image the system drive and restore the image to the target drive, or just clone one to another. The former method is relatively complex compared with the latter, thus in the following, we just focus on the "clone" way to help OS migration.

How to clone MBR OS to GPT disk

Among the renowned partition manager software in the market, we select the EaseUS Partition Master for you. Since it has a clean interface and comes with a "migrate os to HDD/SSD" feature that supports to clone system drive/migrate OS from MBR disk to GPT disk as well as from GPT disk to MBR disk, we think it is the best choice for all average users who demand a fast, easy & complete OS migration from MBR to GPT.

To migrate OS from MBR disk to a GPT disk, there are some tips you should follow.

  • The target GPT disk should be bigger enough or at least with an equal size to that of the source MBR system disk.
  • Make sure the target GPT disk is empty with no partitions and data on it, or else you need to delete all partitions on it. You'd better backup the data first before clearing them all.
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 Windows 10 is supported

Note: The operation of migrating OS to SSD or HDD will delete and remove all existing partitions and data on your target disk. If you saved important data there, back up them to an external hard drive in advance.


Step 1: Run EaseUS Partition Master, select "Migrate OS" from the top menu.

select migrate os

Step 2: Select the SSD or HDD as the destination disk and click "Next".

Warning: the data and partitions on the target disk will be deleted. Make sure that you've backed up important data in advance. If not, do it now.

Then click "Migrate" and "OK" to continue.

select the destination disk

Step 3: Preview the layout of your target disk. You can also click the disk layout options to customize the layout of your target disk as you want. Then Click "OK" to continue.

preview the lay out

Step 4: A pending operation of migrating OS to SSD or HDD will be added. Click the "Execute Operation" button and click "Apply" to start migrating your OS to a new disk.

apply the process