Automatically Backup Multiple Hard Drives to One External Drive

You can use the best backup software for multiple hard drives - AOMEI Backupper to automatically backup hard drives to one external hard drive. Try it and protect your data now!


By Ivy Updated on October 17, 2022

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How do I Backup Multiple Hard Drives?

"I have problems with backing up two hard drives to one external hard drive. Here it is I have two hard drives in my computer: a 256GB SSD (boot drive), a 2TB HDD (secondary storage drive). My external HDD drive is 1.5TB.

You might advice me to backup my files and such thing, I know I can do it manually by dragging these files into my external hard drive, but I don’t want to do that anymore. I want it to be an automatic backup. Is it possible to backup both hard drives at the same time? Do I set up two partitions something like that on my external hard drive?"

Why Backup Multiple Hard Drives

It's not surprising that many users have multiple hard drives on their computer, use SSD for OS and HDD as storage, for example, to get better performance and more space. Thus, users may store many important data on it. Why they want to backup multiple hard drives? Here we summarize some reasons in the following:

  • Create a copy of backup in case of computer failure. 
  • Avoid reinstallation and data loss.
  • Effort-saving.

You don't want your computer to have problems, but sometimes it does due to many reasons, such as, system crash, virus attack, human error, disk failure, etc. In this case, you can only reinstall Windows if you don't a backup. And your data will be deleted as well. 

Conversely, if you created a disk backup in advance, you can easily restore disk image to another disk and get your computer back quickly. And backing up two hard drives or more is a time-saving task. You can need to select hard drives you want to backup and destination path to save backup image, the backup software will take care of the rest after you click Start Backup. And you don't need to manually drag and drop files.

Backup Software for Multiple Hard drives: Best of All

To achieve backup multiple hard drives in Windows computers, you need the best disk backup software - AOMEI Backupper Professional. It works well on all Windows systems, including Windows 11/10/8/7/XP/Vista, and offers many backup features you may use.

Schedule Backup: It supports backing up disk in daily, weekly, monthly, so as to keep files and all the changes made to them.
Incremental Backup: It allows you to backup only changed files, which saves much backup time and disk space.&
Other backup features: Besides, you still can enjoy email notifiction, intelligent sector backup, VSS backup service, normal compression, etc.

In addition, it has a user-friendly interface, so many users can understand and use it as a professional. Please download this software and install it on your computer. For server users, try AOMEI Backupper Server.

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

(PS: This software has a 30-day trial, so you can use it to backup multiple hard drives for this period. To protect your system and data on it, it's suggested to upgrade pro trial. You can enjoy 10% off for one computer.)

How to Automatically Backup Multiple Hard drives to One External Drive

Before you do, you may delete some useless files and uninstall applications you don’t want to keep or just to free up disk space. Then, connect your external hard drive with your computer.

1.Launch this backup software. On the main window, select "Backup" > "Disk Backup" in turn.

Disk Backup

3. Type a proper name into that “Task Name” box. Click "Add Disk".

Add Disk

4. Select hard drives you want to backup as source disk, and then press “Add” to go on.

Select Disk

5. Select the external hard drive as target disk to save the image file.

Select Destination

6. Tick “Schedule Backup”  and select a backup frequency. You can choose to backup these hard drives via daily, weekly, and event triggers, USB plug in, it’s up to you. Afterward, click “Start Backup” to do multiple hard drives backup. 

Schedule Settings

This looks great! You don't need to manually drag and drop files, it will backup multiple hard drives automatically. A few minutes later, you'll find all these hard drives have been backed up to an image file. By the way, you should know if these disks have a plenty of data, the time will be much longer.

But this may result in another issue - backup disk full. At this moment, you can choose to enable automatic backup cleanup in the Backup Scheme and delete old backup images automatically. You have 3 options, namely using By quantity, By time,  By daily/weekly/monthly.

Enable Automatic Backup Cleanup

Besides, you can restore disks or individual partition from the image file if you wish. 

Sometimes, you may be troubled with unbootable issues when the Windows computer fails to boot, and intend to backup disk without Windows using bootable media created before. You can also create a recovery environment on your computer in advance. It will help you to boot your computer successfully without device and enter the software interface.

Create Recovery Environment


You can clearly backup multiple hard drives to external drive with the help of best disk backup software - AOMEI Backupper Professional. And it still allows you to run this task automatically and delete old backup to free up space if there is not enough space on the target disk.

Beisde, it's still a disk cloning software. You can use it to clone hard drive to external drive, replace laptop HDD with SSD, perform system clone only, etc. If you want to protect unlimited PCs and servers, try AOMEI Backupper Technician or TechPlus. And it will allows you to create a portable version of this software and take it everywhere. 

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.