How to Clone a Hard Drive in Windows 10 /8/7 Freely and Safely?

March 25, 2019

You may need to clone hard drive in Windows 10 for securing data or replace the old hard drive with new SSD or HDD. This post will introduce you how to clone a hard drive with the disk cloning software - AOMEI Partition Assistant.

Why Clone Windows 10 Hard Drive?

There are many reasons for users to clone hard drive in Windows 10. For example:

  1. Cloning hard drive in Windows 10 can secure data. Once the original hard drive has been effected by virus or damaged, you won’t lose the data because you have cloned it before.

  2. If your old hard drive is too small to add new data, you may want to transfer your current system, applications and useful data together to a bigger hard drive. Under this circumstance, clone hard drive in Windows 10 to a larger hard drive should be the best way to migrate all data from small hard drive to larger hard drive.

  3. Some users would like to replace traditional HDD with SSD, because SSD has better properties - it is more stable and faster than HDD. Thus, clone hard drive to SSD will save all data to the new SSD, and you can boot from the SSD without reinstallation. 

Clone hard drive to SSD/HDD in Windows 10 without reinstalling

Well, how to clone a hard drive in Windows 10? Directly copy them one by one? This way is not wise as it is not only time-consuming but also may cause Windows 10 boot failure after copy. In such condition, you can solve the problem via a Windows 10 disk cloning software.

AOMEI Partition Assistant Standard should be the best disk cloning software of Windows 10/8/7. It allows you to clone hard drive to SSD/HDD and boot from the cloned SSD/HDD after cloning. Apart from perform disk copy in Windows 10/8/7, it can help you to migrate OS to SSD, convert disk between MBR and GPT and so on. See the detailed steps given below to realize how it works.

FREE download AOMEI Partition Assistant. Windows 10/8/7/Vista/XP is supported.

Step 1. To clone hard drive in Windows 10, you need to install and run it the disk cloning software. Then, choose Disk Copy on the left bar.

Disk Copy

Step 2. Select Copy Disk Quickly and then click Next.

Copy Disk Quickly


  • Copy disk quickly allows you to only copy the used space of the disk, which allows you to clone hard drive to smaller one.

  • Sector-by-sector copy enables you to copy all the sectors of the disk whether it is use or not.

Step 3. As introduced on the screenshot, the disk 1 is selected as the source disk. Then you only need to select the destination disk, and then clickNext.

Select Destination Disk


  • To change source disk, please go to All Tools> Disk Copy Wizard to select a new one.

  • Please check the option "Optimize the performance of SSD" to improve its performance if the destination disk is an SSD.

Step 4. Click Yes to perform the operation.

Confirm and click Yes

Step 5. Here you can edit the partition size as you want before starting clone. Click Next after your configuration. 

Edit Disk Partition

Step 6. Click Apply on the toolbar and then Proceed on the pop-up window to start the cloning. 



  • The capacity of the destination hard drive should be not smaller than the used space on the source hard rive.

  • The deleted or lost files can only be copied to the destination hard drive with "Sector-by-Sector Copy" method.
  • If the hard drive you want to clone contains system/boot partition, the operation will be completed under the “PreOS Mode”.

  • AOMEI Partition Assistant Professional edition allows you to clone MBR to GPT SSD/HDD, but you need ensure your computer’s motherboard supports UEFI, and you need to change boot mode from Legacy BIOS to UEFI after cloning.

After cloning hard drive in Windows 10, you can boot computer from the cloned HDD/SSD.


It is well acknowledged that Disk Management in Windows 10 can’t help you clone your disk quickly; however, with the help of AOMEI Partition Assistant Standard you can clone hard drive in Windows 10 without reinstalling. Hope this article can help you with your problem.