OneDrive Documents Contains Other Important Folders Error [Fixed]

OneDrive is a cloud file sync and backup service released by Microsoft to store personal folders. It is widely used by people to back up files. However, some annoying issues come into being, such as OneDrive filling up C drive, not syncing, not responding, etc.

Here I’ll focus on the OneDrive Documents folder contains other important folders and isn’t supported for file backup error. According to user reports, the error often appears after moving the folder to another drive. The specific reason for the issue is still not confirmed, but I found several prove

An issue with OneDrive backup application on Windows 11. Error message: “The Documents folder contains other important folders and isn’t supported for file backup” in solutions after analyzing extensive user reports.

Fix 1. Disable the Mapped Drive

Some users from the Reddit forum found that disabling the mapped drive can fix the “OneDrive the Documents folder contains other important folders” error. It may seem strange but worth trying.

Step 1. Press the Win + E keys to open the File Explorer and go to This PC.

Step 2. Go to the Computer tab and click on Map network drive. Then select Disconnect network drive.

Step 3. Select the backup drive from the list and click OK to disable it. After that, you can back up again and see if the “Documents folder contains other important folders error”.

Fix 2. Restore the Default Location of Documents Folder

As mentioned above, the “OneDrive Documents folder contains other important folders and isn’t supported for file backup error” mainly occurs after changing the location of the folder. So, you can try restoring the default location of the Documents folder to fix the error.

Step 1. Open File Explorer, input shell:UsersFilesFolder into the address bar, and press Enter.

Step 2. Right-click the Documents folder and select Properties.

Step 3. Go to the Location tab and click on Restore Default > OK to restore the location.

Step 4. If you are prompted to create a folder to the default location, click Yes. Then click Yes when prompted to move all files from the old location to the new location.

Fix 3. Format the Backup Drive

Some users reported that the “OneDrive Documents folder contains other important folders and isn’t supported for file backup error” can be fixed by reformatting the backup drive. How to format the drive? MiniTool Partition Wizard is a free disk partition manager that can format a drive to FAT32/NTFS/exFAT/Ext, extend/resize partitions, measure disk performance, etc.

Step 1. Install the software on your PC and launch it to enter the main interface.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Step 2. Select the backup drive that you encounter “OneDrive the Documents folder contains other important folders error” and select Format Partition from the left action panel.

Step 3. Select your preferred file system from the drop-down menu and click on OK. Also, you can change cluster size and partition label from here. Then click on Apply to execute the formatting.

Fix 4. Use an Alternative to OneDrive

If none of the solutions fix the “OneDrive won’t backup Documents folder” issue, you may consider using a OneDrive alternative, such as Google Drive, Box Drive, Internxt, etc. In addition, you can use an offline backup software – MiniTool ShadowMaker. It can easily sync and back up files, clone hard disks, restore systems, dismount volumes, and so on.

MiniTool ShadowMaker TrialClick to Download100%Clean & Safe

Bottom Line

Now, here comes the end of the post. I hope the above methods can help you fix the OneDrive Documents folder contains other important folders and isn’t supported for file backup error. If you like this article, don’t forget to share it with others.