Hot Clone vs. Cold Clone Difference & Top Choice

You will learn the difference between hot clone and cold clone and how to perform hot clone in Windows in 3 steps.

Ivy

by Ivy Updated on September 9, 2024

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✨The key takeaway:

  • What are the differences between hot clone and cold clone? Which one should we use? Learn More >>
  • How to perform a hot clone step by step? Learn More >>

What is a hot clone?

Hot clone is a cloning method that takes place in the running computer, whether it's a physical machine or a virtual machine. It enables you to clone the system or disk without interrupting the workload or shutting down any running applications.

It's particularly useful for troubleshooting VM issues without making it offline. With it, you can take a snapshot of your virtual machine, then diagnose the cause, analyze it, and find a solution. The problem is that it only creates a copy of the transaction at the beginning. They will not be included if you add new files or make changes continuously during the cloning process.

Hot clone vs. cold clone

Before saying the differences, you need to learn the cold clone first. 

The cold clone requires you to restart your computer and bootfrom a boot CD or Windows PE or is performed when the database is offline. Thus,you cannot use your computer and any data on it until the process is complete.
While the hot clone allows you to clone a system or disk within Windows. During the cloning process, you can do anything on it, and the workflow is not disrupted, thus minimizing lost productive hours for employees and managers.

Anyway, the big difference is whether or not your OS is online and you can use it. This significantly affects production costs. The best choice is using the hot clone method. 

How to perform hot clone step by step

To perform hot clone, you still need cloning software that supports it, AOMEI Backupper Professional, for example. With it, you can easily clone a system, disk, or specific partition without interrupting any workload.

Free download hard drive or SSD cloning software - AOMEI Backupper and install it on the physical or virtual machine.

Download Free Trial Win 11/10/8.1/8/7/XP
Secure Download

P.S. The Professional version of AOMEI Backupper is compatible with Windows 7, 8, 10, and 11. For server users, try AOMEI Backupper Server.

Then, follow the steps below to perform hot clone in Windows.

⚠️Important Notes:
  • Please prepare a new hard drive with a larger capacity. It can be HDDs or SSDs.

  • The destination disk and all existing data on the destination disk will be overwritten. If needed, backup files first. 

  • You can also use it to perform a cold clone if your computer runs into issues. It requires you to create a bootable USB, CD/DVD, or ISO file to boot your physical or virtual machine.

Step 1. Select the items to clone. 

Launch powerful cloning software - AOMEI Backupper. Then, select Clone and System Clone.

System Clone

Step 2. Select the destination disk. 

AOMEI Backupper will select the operating system and other boot-related partition(s) automatically. It displays all the available disks. Please select the prepared disk to store data on the system partition and click Next.

The data on the destination disk will be overwritten. So please be sure you select the right disk. Otherwise, you will lose data on the destination disk.

Choose Destination Partition

Step 3. Set up and start the hot clone. 

Confirm the information of your source and destination disk. Tick SSD Alignment to boost SSD disk performance (if it is) and click Start Clone to perform a hot clone in Windows.

Hot Clone System

⚠️Notes:
  • Sector by sector clone: It is able to copy all sectors of the system partition including empty or bad sectors. The destination disk size must be equal to or larger than the source disk.

  • Make full use of disk space: It is used to extend system partition by adjacent unallocated space, and only exists when your target disk is large. And it will be checked by default in this case.

Now you may have a copy of your physical machine or VMware. Please check if it's bootable and then save it in a safe place. Here's how to How to boot from a hot cloned drive:

Step 1. Restart your physical computer and press the manufacturer key, usually, it's F2, F11, ESC, etc., to go to BIOS

Step 2. Select the Boot tab and set the cloned drive on a physical machine or VMware as the first boot option

Change Boot Order

Step 3. Press F10 or another prompted key to reboot. Please wait patiently and see if it can start normally. 

 

Summary

Hot clone is the best solution if you want to clone a system or disk on a running server or without interrupting any workload.  It can be used in both physical machines and virtual machines. All you need is a hot cloning software - AOMEI Backupper Professional.

AOMEI Backupper

The Best Hot Clone Software for Physical or Virtual Machine

It allows you to clone disk ( HDD/SSD or MBR/GPT), system, or specific partition using hot clone method. More helpful features, such as SSD Alignment, Make full use of disk space, etc., are embedded in AOMEI Backupper waiting for you to explore.

Why not download it to have a try? For advanced users, try AOMEI Backupper Technician or TechPlus. 

Ivy
Ivy · Editor
Ivy is an editor of AOMEI Technology, she covers backup & restore,hard disk & partitions management and cloud files transfer and so on for AOMEI. She is an outgoing girl and enjoys helping people find solutions to their problems. She loves traveling, eating, reading and so on. She usually hangs out with friends at her leisure time.