How to Only Backup Changed Files Per Day Automatically

This article tells you how to only backup changed files per day automatically with a free backup tool. It helps you create incremental/differential backup instead of full backup.


By Lily Updated on August 4, 2023

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Why backup files automatically?

Only Backup Changed Files Per Day Automatically

We use computer every day, and the data is increasing with the use of computer. There are many important files stored on the computer. In case of losing important data, users always backup files to other storage devices like another disk, or even synchronize files to cloud storage. But making a backup every day seems annoying, and you may forget to back up. Thus, it is necessary to make a schedule backup that can backup files automatically.

Backup only changed files per day automatically

Backing up changed files per day automatically will be very useful to users. But how to do it on Windows 11/10/8/7? First, you need to figure out different backup types.

Full Backup will backup all the data whether the newly added or existing files. People usually do a full backup for the first time. As time goes by, the data will increase, and after a period of time, you’d better backup again to ensure the new data’s safety. However, full backup will duplicate both the old existing data and newly added data, so it will take more time and occupy more space. There is no need to do a full backup again.

◑ Incremental backup refers to backing up the changed and newly added data based on the last backup (either a full backup or an incremental backup). There is a mutual relationship between the backup images. The new image file of incremental backup is based on the previous image file. The deletion of a previous image file will make all the subsequent image files invalid.

◑ Differential backup is used to back up the changed data based on the last full backup. Compared with the last full backup, if there are data changed, added, or deleted, it will backup the changed files to the destination place. It can help to improve backup efficiency and reduce the storage space required by the image file.

If you only want to backup changed files per day automatically, what you need is to do an incremental backup or differential backup.

How to backup only new or changed files in Windows 10/11 with AOMEI Backupper

Windows OS has a built-in tool that you can use to backup files. But if you do not understand it clearly, the backup may fail. Considering the data's safety, here we highly recommend the best free backup software AOMEI Backupper Standard. Setting an automatic daily backup of changed files could be quite simple with the help of AOMEI Backupper.

  1. First, download AOMEI Backupper Standard, install and launch it. Click Backup -> File Backup.
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File Backup

  1. Click Add Folder or Add File to add the files or folders which you want to backup. Then select the destination space that you want to put the backup image in.

Add Folders Files

  1. Then you can set up a schedule to only backup changed files per day automatically. Click Schedule Backup, and you will see there are 5 options - daily, weekly, monthly, event triggers and USB plug in. Choose Daily here.

Schedule Settings

  1. Click Backup Scheme and you can see Incremental Backup is selected by default to perform the scheduled backup. You can upgrade to Pro version to enjoy Differential Backup.


  1. After all the settings, click Start Backup to launch the progress. You have already set up the daily schedule backup that only backs up changed files.


* If there is an existing full backup task, you can set it up to backup only changed files under the Home tab. Just click Backup and select Incremental Backup/Differential Backup.

Choose Incremental Backup

* If you own an AOMEI account, you can backup files to AOMEI Cloud. It offers you 1TB free storage for 15 days after you sign up for an AOMEI account.



It is easy to only backup changed files per day automatically using AOMEI Backupper. Actually, if you would like to synchronize files automatically, you can use the “Basic Sync” feature. What's more, if you upgrade to a higher version, you can set up backup retention policy to delete old backups automatically so as to save storage space.

Lily · Editor
Lily Green joined AOMEI in 2018 and has since become a professional in the areas of data protection and data transfer. She is committed to helping users protect their precious computer data and troubleshoot Windows system errors. She consistently stays vigilant about the latest trends in technology, guaranteeing that the given information aligned with the ongoing advancements in the field.