By Delia / Last update October 13, 2020

What is real-time backup?

Real-time backup is also known as continuous data protection(CDP). It refers to a type of backup that automatically saving a copy of every change made to the data. 

Real-time backup is different from traditional backup. Data only can be restored to the point at which the backup was done in traditional backup. However, real-time backup allows restoring data to any point in time or save the same data to the destination as the source.

Is “real-time backup to external hard drive” necessary?

Data security is the most important thing for most computer users, because data loss may bring great trouble. Therefore, you may take measures like backing up files or folders to protect data. Is it necessary to perform real time backup to external hard drive?

  • It will be very troublesome if you have to manually back up the latest version of the file every time you modified it. Because you may need to modify the data frequently after backing up the data sometimes.

  • And What’s more, unexpected conditions like computer crashes could make your computer fail to start, so you’d better set real-time backup to an external hard drive.

Therefore, real-time backup is necessary for you to protect data continuously. It will detect the latest version of your files, then backs up these data in real-time automatically. 

Reliable real-time backup software - AOMEI Backupper

To set up real-time backup to external hard drive, you need a reliable third-party real-time backup software because Windows built-in tool doesn’t have this kind of feature.

I highly recommend you AOMEI Backupper Professional because it is a professional real-time backup software for Windows10/8/7, which allows you to backup files in real time and store changes only since the last backup to save your disk space. It has clear interface and user-friendly design so that you can figure out quickly.

The Real-Time Sync feature (also a real-time backup) will detect the changes that happen to the file or folder in the source directory. Then, it will automatically sync files to external hard drive, network, even NAS in time.

How to automatic backup files to external hard drive in Windows 10/8/7?

Now, follow the detailed steps below to set up real-time backup for continuous data protection.

Before setting up real-time file backup

  • Please connect the external hard drive to your computer and make sure it can be detected. And if you want to keep syncing files to external hard drive, you need to keep connecting external hard drive to your computer.

  • Download AOMEI Backupper Professional 30-day free trial, install and launch it.

Download Free Trial

Win 10/8.1/8/7/XP

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Step 1. Click on Sync, and then select Real-Time Sync.

Real Time Sync

Step 2. Click Add Folder to add the items that you want to backup. Rename the Task Name if need be.

Add Folder

Tip: You can click Filter settings to include or exclude files and folders, such as back up files with a certain file extension.

Sync Click Filter

Step 3. Select the external hard drive as your destination path.

Select Sync Destination

Step 4. Press Start Sync >> to start perform real-time backup to external hard drive in Windows 10/8/7.

Start Real Time Sync


With AOMEI Backupper Professional, setting up real-time backup to external hard drive is an easy job. It takes only a few steps to achieve continuous data protection without interrupting your important work and rebooting a system.

As the best backup software for Windows PCs, it also allows you create a system image to restore system back to normal if the system fails to boot, backup entire computer to external hard drive to protect everything, and so on.

If you are a Windows Server user, Please try AOMEI Backupper Server.