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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


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. Then, a warning message tells that the data on the target disk will be erased. Click "OK" to continue.

select the destination disk

Step 3: Preview the layout. If the target disk is an SSD, tick the "Check the option if this is an SSD" option. Then Click "OK".

preview the lay out

Step 4: A pending operation of migrating OS to SSD or HDD will be added. Execute the operation and click "Apply".

apply the process

To boot from the SSD/HDD:

  • Restart PC and press F2 or F8 to enter BIOS settings.
  • In the Boot option, select new HDD/SSD as the new boot drive and save all the changes.
  • Exit BIOS and restart the computer, you should be able to see Windows 10 running on your new disk without any problems.