Clone External Hard Drive in an Easy Way

January 10, 2019

AOMEI Partition Assistant Professional can help you to clone external hard drive or internal hard drive to another hard drive in Windows without efforts.

Need to clone my Samsung external hard drive

“As my 500GB Samsung external hard drive contains plenty of files and is with many programs installed. To avoid data loss when my external hard drive is corrupted, I want to clone it to another 1TB external hard drive in Windows 10. Then how to clone external hard drive to another external hard drive? Is any advice or information?”

How to clone external hard drive to another one?

It’s not a bad decision to duplicate hard drive for protecting important data stored on it. In fact, you can copy external hard drive to another external hard drive (HDD or SSD) without any difficult as long as you find out right hard drive cloning software.

Among a great number of cloning software, AOMEI Partition Assistant Professional is highly recommended. It offers two copy methods: “Copy Disk Quickly” and “Sector-by-Sector Copy”, which allows you to copy used sectors or all sectors on source external hard drive, satisfying different cloning demands. What’s more important, it allows you to clone internal system disk to SSD/HDD, thus you can upgrade system disk to SSD and avoid Windows and all other application reinstallation at the same time.

Detailed steps to clone external hard drive

PS.: It is necessary to realize that all data on the destination external hard drive will be erased during this process. If you don’t want to suffer from data loss, make a backup in advance.

Step 1. Connect the two external hard drives to your computer; install and run AOMEI Partition Assistant Professional. In the main interface, click Disk Copy Wizard.

Clone External Hard Drive

Step 2. It will pop up a small window, offering you two copy methods. Choose one based on your specific situation.

Two Ways

Note: This first way requires that the capacity of the destination external hard drive should be not smaller than the used space on the source external hard drive; the second way demands that the size of target external drive should be larger than or equal to the size of source external drive.

Step 3. Choose your source external hard drive and click on Next icon.

Source Hard Drive -

Step 4. Select your target external hard drive and click Next.

Target One

PS.: If the external hard drive is solid state drive, tick Optimize the performance of SSD to align SSD partitions.

Step 5. In this window, you can resize the partitions on the destination disk.


Note: If you clone hard drive to smaller hard drive, the first option Copy without resizing partitions will be greyed out.

Step 6. Click Apply >Proceed to commit operations.



  • AOMEI Partition Assistant Professional is for Windows PC users, if you are Windows Server users, you can employ AOMEI Partition Assistant Server.

  • When you only want to clone certain data on the external hard drive, the feature Partition Copy Wizard can help you to perform this operation.


Whether you want to clone external hard drive to another external hard drive or clone internal boot hard drive to new hard drive, you can turn to this versatile and powerful hard drive cloning software – AOMIE Partition Assistant Professional. And it possess other multiple functions like cloning operating system partition to SSD, converting disk between MBR and GPT without data loss and wiping hard drive etc.