56634: Acronis Cyber Protect Home Office, Acronis True Image: how to clone a disk

Last update: 01-08-2022


This article explains how to clone a disk in both Acronis Cyber Protect Home Office and Acronis True Image.

  1. Using the products you can clone only basic disks, both MBR and GPT. Сloning of dynamic disks is not supported.
  2. You cannot clone a single partition, only cloning of an entire disk is possible.
If you are planning to clone a disk from your laptop, please see Cloning laptop hard disk.
Recent versions of the products can perform active cloning under Windows/macOS. See the following articles for more information:

The term "Active Cloning" refers to a disk cloning operation that does not require you to reboot the computer to complete the operation. Please note that in some cases the product will still ask for reboot, disk will be cloned offline, and then computer will reboot back into Windows.


Source and target disks must have equal logical sector size. Cloning to a disk with different logical sector size is not supported. E.g., you can clone a 512 bytes/sector disk to 512 bytes/sector disk; you can clone a 4096 bytes/sector disk to 4096 bytes/sector disk; but you cannot clone a disk with logical sector size 512 bytes to disk with logical sector size 4096 bytes.

Source disk volumes can be cloned to the target disk "as is" or resized proportionally. It is possible to clone a larger disk to a smaller one, provided that the smaller hard disk has enough capacity to fit the contents of the larger disk.

It is recommended that your old and new hard drives work in the same controller mode (for example, IDE or AHCI). Otherwise, your computer might not start from the new hard drive.

 If you clone a disk with Windows to an external USB hard drive, you might not be able to boot from it. We recommend cloning to an internal SSD or HDD instead.

It is recommended not to format the source hard disk after the cloning until you are sure that the cloned target disk boots fine.
Cloning RAID disks

Cloning is supported only for simple disk partitioning systems, such as MBR and GPT. Acronis Cyber Protect Home Office\Acronis True Image cannot clone RAIDs set up as LVM or LDM. Hardware RAIDs and storage spaces can be cloned provided the environment where Acronis products are running (e.g. operating system) supports them, as they get the information about RAID configuration from the environment. Cloning of a hardware RAID will work if a reboot is not required: after reboot, the operation continues in standalone version of Acronis Cyber Protect Home Office\Acronis True Image, where support of all hardware RAID configurations is not guaranteed and thus the cloning operation may fail after reboot. Acronis development team is working on improving hardware RAID support in bootable environment. 

Step-by-step guide

If you use Acronis True Image 2017 or earlier version and you are going to do system disk cloning, we recommend that you do it using Acronis Bootable Media . 

Even when you start cloning in Windows, the computer may reboot into the Linux environment the same as when booting from Linux-based rescue media. Because of this, it is better to clone using rescue media. For example, there may be a case when your hard disk drives are detected in Windows and not detected in bootable media environment. If this is the case, the cloning operation will fail after reboot. When booting from the rescue media, you can make sure that Acronis products detect both the source and target disks before starting the cloning operation. 

Video guides

More information

See also Acronis True Image Does Not Clone Drives with Different Logic Sector Sizes.