By Ivy / Last update October 21, 2021

 Can OneDrive backup any folder?

By default, OneDrive mirror folder requires a Microsoft account and its folder protection feature only backup or sync the important folders on your Windows 10 computer, including “Desktop”, “Documents” and “Pictures”.  If you are using currently Windows 7/8/8.1, you need to download OneDrive desktop app first and then set manually.

However, you can still backup or sync folders not yet in the OneDrive desktop folder. Just copy or paste it to that folder or use mklink to make a junction with OneDrive folder, similar to the method on my earlier article: Move Program Files to another drive in Windows 10. In addition, you still can use free file sync software AOMEI Backupper. Then, keep reading below and learn how to sync PC folders.

Method 1: Backup any folder to OneDrive with desktop folder

OneDrive comes along with your Windows 10, here I’ll take Windows 10 as an example and show you the steps to backup any folder to OneDrive. Also, you can use these steps in Windows 11. If you are using Windows 7/8/8.1, please download OneDrive desktop app at first.

Step 1. Type “onedrive” in the search box and click the top result and sign in with your Microsoft account.

Step 2. Click “Next” to accept the default folder location for your OneDrive files. If you want to change the folder location, click “Change location” and select your preference.


Step 3. Click “Open my OneDrive folder” to access the desktop folder, then copy and paste files or folders need to be synced in that folder, Downloads folder, for example. At last, your files or folders will be uploaded to automatically.

Open Onedrive Folder

After syncing, your files or folders are available on both and your local computer. This process is very easy to operate. But you may find something annoying.
◉ The copy and paste process is tedious and time-consuming when you have a large amount of files or folders to be synced simultaneously. Please note that you can only sync files from desktop app within 100GB.
◉ Meanwhile, it will only upload the changed files or folders in OneDrive folder. That is, if you change files in the original location, OneDrive will not sync them.
◉ If a folder contains the important folder including Documents, Desktop, Pictures, Screenshots, Camera Roll, and OneDrive folder, you may receive error message, saying “Important folders aren't in the default locations”. Please move it back to the original locations.

Method 2: Sync PC folder to OneDrive with mklink

To sync PC folder to OneDrive with mklink, whether files, pictures or videos, you need to get the location of OneDrive desktop folder and remember it. By default, OneDrive desktop folder is located at C:\Users\Username. Then, see how it works with the following steps.

Step 1. Type "cmd" in the search box, right-click it and select "Run as administrator".

Step 2.  Type command line based on the syntax below. 

mklink /j "C:\Users\Username\OneDrive\folder name" "Full path of source folder" 

To sync videos to OneDrive: Taking "E: \videos" as the source folder full path and "videos" as folder name, you are supposed to type as mklink /j "C:\Users\Username\OneDrive\videos" "E: \videos" and hit "Enter".

Mklink Sync With Onedrive

• The folder name refers to a folder you want to sync with OneDrive, but not already in OneDrive desktop folder. This folder is a junction point of the source folder, so you'd better use the same name of both folder, which help know what it's linked to.
• The full path of source folder is the path of the folder need syncing with OneDrive. 
• To undo the junction, just delete the folder in OneDrive desktop folder and it does not have any effect on the source folder.

Step 3. Now, it will automatically create a folder named videos in the OneDrive folder and sync your videos in the F drive to that folder. All changes made in either folder will be reflected to another.

Method 3: Automatically mirror folder to OneDrive with AOMEI Backupper

To automatic mirror folder to OneDrive, you need a trust and reliable file sync software like AOMEI Backupper Standard. It works well in syncing a large amount of files, schedule sync files daily, weekly or monthly without missing any changes. It supports various storage device such as, OneDrive, Dropbox, Google Drive, NAS, external disk, local drive etc. It’s compatible with all operating system, including Windows 7/8/10/11/XP/Vista/XP.

To execute OneDrive mirror folder regularly, you can use the following steps as a reference. Before that, download and install AOMEI Backupper Standard on Windows 10 computer. If your computer is currently using previous system, please download OneDrive desktop app from Microsoft at first.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

Step 1. Launch this software, click “Sync” and “Mirror Sync” in order.

Mirror Sync

Step 2. Click “+ Add Folder” to select folder you want to sync. To add more folders, click “+” to find your folder and repeat the process until all folders have been added.

Add Folder

Step 3. Click the inverted triangle button and choose “Select a cloud drive”. 

Select A Cloud Drive

Step 4. In the Select Cloud window, tap on “OneDrive” cloud and click “OK”.

Select Onedrive

Note: If you cannot find OneDrive in the list, then go back to previous step, click the folder shaped button and manually select the desktop folder of OneDrive.

Step 5. To automatic sync folder to OneDrive, click “Schedule” and “OK” to enable the default setting, it’s daily. Then, click on "Start Sync" to start the folder sync.


◉ Don’t modify the source folder name in the schedule file sync task, otherwise the program cannot synchronize it (them) anymore.
◉ If you think daily schedule sync is frequent, you can extend the interval to weekly or monthly.
◉ To sync all changes without delay, you could consider using “Real-time sync” in higher version. Learn more from edition comparison.
◉ Also, you still can sync files to Dropbox, Google Drive, external hard drive etc by replacing the destination path.

Further reading: not sync everything to OneDrive folder

If you only want to sync certain folders locally, you can make use of OneDrive Settings. To make it, click the OneDrive icon in the taskbar, select “More” > “Settings” > “Account” > “Choose folders”, then uncheck “Make all files available” and check the folder you want to sync to your computer, click “OK” to save changes.

Make All Files Available

Over to you

OneDrive mirror folder means syncing or backing up local folder to OneDrive to protect data. It will make an exact copy of your files and ensure you always have the ability to restore your files back.

To sync desktop, documents, pictures, including downloads folder or other folders that are not yet in the OneDrive folder, to OneDrive, you have two choices, using OneDrive desktop folder or AOMEI Backupper Standard.

Honestly, the latter is smarter. It can sync local folder to OneDrive automatically and regularly without human intervention, so you will never miss any changes. It saves users much time, especially when you have a large amount of files need syncing. Still don’t have a copy of your important files? Create one now!