One Easy Way to Clone External Hard Drive to Another

Need to clone an external hard drive to another external hard drive in Windows 11, 10, 8, or 7? Download free cloning software - AOMEI Backupper Standard to help you.

By @Ivy Last Updated September 30, 2024

Why clone an external hard drive to another external hard drive?

Cloning an external hard drive creates a duplicate copy of files on it, so you can use it as a backup copy. It's similar to backup external hard drive to another external hard drive, but they are not exactly the same. Then you can easily get them back if your files are lost or the disk is damaged.

Also, users can use it as a replacement for the current system disk in case of system failure or other serious scenarios. So you can easily migrate operating system to new SSD without reinstalling it. 

In addition, some users still try to clone the entire disk to transfer a large amount of data quickly, copying and pasting individual files is laborious and time-consuming.

What do you need to clone an external hard drive?

For whatever purpose you want to clone an external hard drive to another, you need to a cloning software. However, none of the current versions of Windows have this cloning feature. We highly recommend you use AOMEI Backupper Standard, one of the best external hard drive cloning software. 

AOMEI Backupper
Top External Hard Drive Cloning Software
  • Have a clear graphic user interface and easy to operate. 
  • Different cloning scenarios, such as clone data disk from MBR to MBR, clone large HDD to smaller SSD, etc.
  • Clone external hard drive of different brands, including SanDisk, WD, Samsung, Toshiba, Transcend, etc.
  • Optimize SSD disk performance, such as reading & writing speed.
  • Advanced features, such as clone MBR disk to GPT, Edit Partitions, migrate operating system to SSD, etc. Upgrade now to enjoy them!

How to clone one external hard drive to another in Windows 10 or 11

By default, AOMEI Backupper Standard clones only used sectors from one hard drive to another. So it will be ok if the another external hard drive is smaller.

⚠️Before cloning external hard drive in Windows 10 or 11, get the following things prepared:
  • Install these two external hard drives to your PC and make sure they can be detected by Windows.
  • Prepare two connectors, such as USB-to-SATA cable or adapter, if necessary.
  • Remember clearly which disk is the source external drive. Because all data on the destination external drive will be overwritten during the cloning process.
  • Download and install cloning software - AOMEI Backupper Standard.
  • Please backup files first if there is any important data on the destination disk. 

Then, learn how to clone an external hard drive using the following steps:

Step 1. Select a cloning method. 

Open AOMEI Backupper Standard. Then, on the main page of this software, click Clone > Disk Clone.

Step 2. Select the external hard drive as source disk. 

It will display all available disks on your computer. Select the external hard drive you want to clone and click Next to continue.

Step 3. Select another external hard drive as destination disk. 

Find and select another external hard drive in the following window to receive all the data on the source disk. Then, click Next and OK to confirm you want to clone external hard drive to another one.

The destination disk will be overwritten. So please be you select the right disk or backup files in advance to prevent data loss. 

Step 4. Clone external hard drive to another one

The Sector by sector clone feature clones all sectors of the original disk. It requires the target disk to be equal to or larger than the source disk. Optionally, click SSD Alignment to accelerate the writing and reading speed of the SSD disk (if it is). Then, confirm everything is ok and click Start Clone to copy external hard drive to another external hard drive.

🌟The Edit Partitions feature allows you to extend partition to unallocated space by Add unsed space to all partitions or Manually adjust partition size. Note both options are supported by the professional version. You can also use it to convert MBR to GPT or vice versa.

FAQs on how to clone an external hard drive

The following questions are highly relevant to how to clone an external hard drive. Check the answer if you have similar questions.

Q 1. How to backup external hard drive to another external hard drive in Windows 10?
 
If you just make an exact copy of your current external hard drive, cloning it with free disk clone software - AOMEI Backupper Standard will be the best method. But if you want to track its changes, try its Disk Backup feature and set the backup task to run automatically. Here are some simple steps: 1. Open AOMEI Backupper Standard. Click Disk Bacup under the Backup tab. 2. Select the source and destination external hard drive subsequently. Remember to click Next. 3. Click Schedule Backup and enable Daily, Weekly, Monthly, etc. schedule settings. Finally, click Start Backup.
Q 2. How do I clone a hard drive to another hard drive?
 
Similar to cloning external hard drive to another external hard drive in Windows, open AOMEI Backupper Standard and select Disk Clone. Then, select both of your drives and click Next. Finally, click Start Clone.
Q3. Can I clone large HDD to smaller SSD?
 
Yes, AOMEI Backupper uses the Intelligent Clone feature by default, which clones only used sectors of a drive. So if your SSD can hold data on the large HDD, you can clone large HDD to smaller SSD. If it's a system disk, the smaller SSD will remain bootable.
Q4. What are the differences between clone external hard drive to another and backup external hard drive to another
 

The backup and restore method requires you to backup to a temporary storage and then restore to another external disk. As a result, it creates a compressed image file.

During the process, it requires temporary storage and takes double the time. What's more, your data is inaccessible unless you restore it.

Cloning, on the other hand, is simpler and more straightforward. It's a 1:1 copy - no extra device and time & effort saver. The data is accessible through a PC without restoring.

Verdict

Cloning external hard drive to another external hard drive using free cloning software - AOMEI Backupper Standard  is the easiest way to make a duplicate copy of your important files on the disk. You can view, modify, or delete files in the target disk at any time without restoring the image file. 

AOMEI Backupper Standard 

Best free cloning software for external hard drive

Also, you still can use it to clone system disk, such as clone GPT disk to MBR, and make it bootable. Note it's available on the professional version of AOMEI Backupper. In addition, you can also use it to clone OS only instead of entire disk. For server users, you could consider using AOMEI Backupper Server.