How to Clone 2TB MBR to 4TB Disk?

If you want to clone 2TB MBR to 4TB disk, you can refer to this article to get the best disk clone software and the method of how to clone 2TB MBR to 4TB disk.


By Dervish / Updated on July 8, 2024

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Key Takeaways:

  • MBR only allows to making 2TB partitions, if you want to clone a 2TB MBR disk to a 4TB hard drive, you need to convert MBR and GPT or convert GPT to MBR and after cloning, convert back.
  • AOMEI Partition Assistant provides 4 simple steps that allow you to clone MBR hard disk to GPT hard disk easily.

Can I Clone 2TB MBR to 4TB disk?

Sometimes you may want to replace your disk with a larger one, so that you can store a large amount of data. Here is a typical case:

"Recently, I bought a new 4TB disk, now I need to clone my 2TB MBR disk to this new 4TB disk, could someone offered me some guidance in cloning 2TB MBR to 4TB GPT disk. Thanks in advance!” - from Tom's Hardware

To use the full 4TB disk space, you have to initialize the 4TB disk to GPT partition style. GPT partition style requires UEFI boot mode to load system from a GPT disk. And MBR disk uses Legacy BIOS boot mode. However, you cannot clone an MBR to a GPT because the cloned disk is not bootable. Since MBR doesn't support 4TB drives, cloning a 2TB MBR to a 4TB drive means you need to convert GPT to MBR.

You can try AOMEI Partition Assistant to convert MBR to GPT or convert GPT to MBR without data loss. After the conversion is complete, you can directly use the tool to clone the 2TB MBR to a 4TB disk.AOMEI Partition Assistant offers a one-stop service. 

AOMEI Partition Assistant

The Best Windows Disk Partition Manager and PC Optimizer

Convert System Disk To MBR

What Is the Best disk clone software to Clone MBR  to GPT

How to clone 2TB MBR to 4TB disk? You may want to use Windows built-in tool to restore an image backup of your hard drive to the 4TB disk. But after loading to the restore interface, you will receive an error that the system image restore fails because of EFI/BIOS. But don’t worry, here provides you an easy method to do this operation – use disk clone software to clone 2TB MBR to 4TB disk.

Compared with other software, here I highly recommend AOMEI Partition Assistant- the best free disk clone software which provides you many powerful functions like Disk Copy Wizard, Partition Copy Wizard, and even Migrate OS to SSD. With the help of AOMEI Partition Assistant, you can clone 2TB MBR to 4TB GPT disk easily and effectively.

Clone 2TB MBR to 4TB disk via AOMEI Partition Assistant

If you want to clone the system disk to a GPT disk, you need to make sure your computer motherboard supports EFI/UEFI. First, download the software. The specific steps of cloning 2TB MBR to 4TB disk are as follows:

AOMEI Partition Assistant

The Best Windows Disk Partition Manager and PC Optimizer

Step 1. Open the installed AOMEI Partition Assistant Professional, click "Clone" in the main interface, and select "Clone Disk".


Step 2. Choose the hard disk that you need to clone as the source disk like SSD and click "Next".


Step 3. Select the destination disk to store the data on the source disk, and then click "Next".


Step 4. Then, you can check the source and destination disk in the next window or change to "Sector to Sector clone", and click the "Confirm" button to continue if there is no problem.


Here, you can also click the "Settings" button to adjust the partition size on the destination disk or tick "4k alignment" to Optimize the performance of SSD if the target disk is an SSD drive. 


Tip: If you want to clone Windows to a smaller drive, the "Clone without resizing partitions"  button will be greyed out. Then, a Note about how to boot OS from the destination disk will pop up. Read and keep it in mind.

Step 5. After returning to the main interface, check the pending operation and click "Apply" and "Proceed" to commit the operation.



  • If the hard disk you want to clone contains system boot partition, the operation will be completed under the “PreOS Mode”.

  • The deleted or lost files can only be copied to the destination hard disk through “Sector-by-Sector Copy” method.

  • Dynamic disk, Offline disks could not be set as target disk.

AOMEI Partition Assistant

The Best Windows Disk Partition Manager and PC Optimizer


Follow these simple steps, you can easily clone 2TB MBR to 4TB disk. AOMEI Partition Assistant can be the best disk clone software. In addition to clone disk, it also provides “Partition Copy Wizard” for cloning a specific partition. Resize/Move/Delete/Format partition, Migrate OS to SSD, SSD secure ease are also allowed too. If you meet problem c drive full windows 10, you can upgrade to AOMEI Partition Assistant Professional to solve this problem.

Dervish · Staff Editor
Dervish is an English editor of AOMEI Technology; He is delicated to offering users easy and effecitve solutions for issuses related to disks and partitoins. In his spare time, he enjoy wathcning films, playing footable, traveling and so on.