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 May 12, 2023

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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!”


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. In order 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. If your original hard drive is an MBR disk, it will be tricky to clone the hard drive from MBR to GPT disk as they require different firmware.

Best disk clone software

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 system image restore fails because of EFI/BIOS. But don’t worry, here provides you an easy method to do this operation – use a disk clone software to clone 2TB MBR to 4TB disk. Compare 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. The specific steps of cloning 2TB MBR to 4TB disk are as follows:

Step 1. Download, install and run AOMEI Partition Assistant, the basic partition information will display on the main interface. Then, click “App Mover” in the right menu. In the pop-up window, you can select the disk clone method in your need, and click “Next” to continue.

Disk Clone Wizard

Clone Methods

* “Copy Disk Quickly”: Only copies the used space of disk.

“Sector-by-Sector Copy”: Copy all sectors of the disk no matter whether it is used or not. If you clone your MBR disk through sector by sector copy, it will convert the MBR disk into GPT disk before cloning.

Step 2. In the next window, select your 2TB MBR disk as the source disk, and then click “Next”.

Select Source Disk

Step 3. Then, you should select the 4TB disk as the destination disk, and click “Next” to continue.

Select Destination Disk

Step 4. After that, it will pop up a window that you can edit your disk. Choose the copy option you need and then click “Next” to continue.

Edit Disk

* “Copy without resizing partitions”:Then source disk configuration will be copied on the new disk with same partitions size.

“Fit partitions to entire disk”:The partitions on the source disk will occupy the entire destination disk.

“Edit partitions on this disk”: You could change the partitions size on the new disk.

Step 5.Finally, it will be back to the main interface. Preview the changes and click “Apply” to complete 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.


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.