By Bryce / Last Updated December 14, 2020

Why need disk cloning software for Windows 10?

Disk cloning can copy all data including system-related files from the source disk to the destination disk. You may want to clone disk in Windows 10 due to various motivations:

Upgrade disk without reinstallation: Bothered by slow boot speed or low disk capacity, you may want to upgrade traditional HDD (hard disk drive) to faster SSD (solid-state drive) or replace a small SSD with a larger one. To avoid the hassle of OS and apps reinstallation, it’s wise to clone the hard drive.
✔ Clone disk for backup: It’s impossible to promise that your HDD/SSD drive won’t be damaged or infected with virus forever. Through cloning disk, you can get a copy of the source disk; even your original disk is corrupted, you can still access the data on the cloned hard drive.

However, Windows 10 doesn’t have a built-in disk cloning software. To complete disk copy in Windows 10, it’s necessary to turn to third-party software.

Free disk cloning software for Windows 10/8/7

There is a great number of hard drive cloning software in the market. Among these tools, AOMEI Partition Assistant Standard is highly recommended due to the highlights listed below:

Bootable clone: It can clone all partitions including hidden boot related partitions, ensuring that you can boot from the target cloned disk afterward. This is very important for the cloning OS disk as if some system-related partitions are missed out in the cloning process, the target disk can be unbootable.
Flexible copy options: It can satisfy different disk size copy demands. It can clone a larger HDD to a smaller SSD, with copy only used space function. It supports to clone only Windows 10 system related partitions (data partitions not included) with Migrate OS to SSD function. It provides sector-by-sector clone, enables you to clone hard drive with bad sectors.
Simple operation: It’s with a concise and user-friendly graphic interface and step-by-step wizards, enabling you to use it effortlessly even you are a green hand. Besides, you can preview the result of your operation. If you are unsatisfied, you can cancel the operation easily by clicking the Undo button.

What’s more, this great disk clone software can align SSD partitions to improve its performance when you duplicate hard drive to SSD.

Tutorial: clone disk in Windows 10 within 5 steps

With AOMEI Partition Assistant, you can achieve hard drive replacement or SSD upgrade without reinstalling just within a few steps. Let's see how to use the free cloning software to complete disk copy.

Before cloning disk in Windows 10:

  • Connect the destination disk to your PC that is running Windows 10. If there is no extra bay for the target disk, you need a USB-to-SATA cable.

  • Back up the destination disk before cloning if there are important files on it.

  • Uninstall unnecessary applications on the source disk to decrease the time of the copy process (omissible).

  • Free download AOMEI Partition Assistant Standard, install and run it on your PC.

Download Freeware Win 10/8.1/8/7/XP
Secure Download

Step 1. Install and run the free cloning software. Click "Disk Clone".

Disk Copy

Step 2. In the pop-up, you can two ways to clone hard drive: "Clone Disk Quickly" and "Sector-by-Sector Clone". Usually, the first way is recommended.

Copy Disk in Windows 10 Quickly

▸Clone Disk Quickly – clone used space on the source disk, allowing you to clone disk to a smaller one as long as the destination disk’s capacity is not smaller than the used space on the source disk, which takes less time.
▸Sector-by-Sector Clone – clone every sector to the target disk, requiring that the capacity of the destination disk be larger than or equal to the capacity of the source disk, which takes a longer time.

Step 3. Disk 1 has been chosen as the source disk by default. Here you need to choose the destination disk to contain all data of the source disk.

Seleect Destination Disk

Note: If you clone disk to SSD, please tick "Optimize the performance of SSD" to align partitions.

Step 4. In this window, you can adjust partitions on the destination disk.

Edit Disk

PS.: There are three options but only two are available if you clone a large hard drive to a smaller SSD.

Step 5. You’ll return to the main interface, click “Apply” and “Proceed” to execute this task.


◆ For cloning disk that contains OS, AOMEI Partition Assistant Standard supports only MBR to MBR, if you need to cloning GPT to GPT/MBR or MBR to GPT, please upgrade to Professional version.
◆ After cloning Windows 10 hard drive to SSD, to boot OS from the cloned disk successfully, you need to remove your old drive or enter BIOS to change boot priority.

Wrap things up

From all the above, it can be easily concluded that AOMEI Partition Assistant is a fantastic disk cloning software for Windows 10. Actually, it is featured with many other useful functions like extending C drive without data loss, converting NTFS into FAT32 without formatting converting disk between MBR and GPT without deleting partitions, etc. It is compatible with Windows PC. If you want to clone disk to disk in Windows Server 2019/2016/2012 (R2)/2008/2003, you can turn to AOMEI Partition Assistant Server Edition.