By AOMEI / Last Updated October 23, 2019

Why backup computer to external hard drive

●To backup computer to external hard drive is to protect your data security, in case of malicious software, viruses, physical damage and theft.

● Backup computer to external hard drive is the simplest way to backup your data.

● It doesn’t cost your much time and energy to backup a computer to external hard drive.

● Once the backup is done and the external hard drive is disconnected, your data is safe because it is not affected by the computer problem.

Quick guide to backup computer to external hard drive

Backup computer to external hard drive means to backup computer hard drive to external. Simply speaking, to backup computer is to back all files on computer. And in the backup area, you just need to do a disk backup. AOMEI Backupper can offer you a best way to backup computer to external hard drive. And you can backup your files by a way which save your time and energy, and you do not to pay for the backup software. Let me show you in detail.

Step1. Download AOMEI Backupper, install it.

Step2. Plug the external hard drive into the computer you want to backup, make sure the device has enough room for store the image files, or the program will send a prompt “The disk space on the selected partition may be insufficient”.

Step3. Open AOMEI Backupper, click the Disk Backup under the Backup option.

Disk Backup

Step4. Import a Task Name to distinguish it from other backups. Select the disks you need to backup and select the external hard drive as the destination path. The corresponding drive letter to the external hard drive is “F:\”.

Select Location

Step6.Click the Start Backup to begin the backup, and when you confirm there are backups in the external hard drive, click “Finish” to close the interface.


In order to backup computer to external hard drive completely, do not pull the external hard drive out unless the backup is done.

If you cannot see the external hard driver option on your computer, you might have some problem with the USB device driver. In such case, it is suggested that you take a look at this driver updater, which allows you to detect and download all the missing and outdated drivers for your computer. This post has more detailed information.

For a maximum protection, keep your external hard drive in a fireproof location separate from the computer.

Be aware of the difference between incremental and full backups, because only a subset of files changes between backups, there is no need to backup all regularly. Only new files and those which have been modified need to be backed up - this is called incremental backup. To learn more about incremental backup, you can view the Incremental and Differential.

■If you want to backup computer to external hard drive in at regular intervals, you can view this page How to create a schedule backup.