OneDrive File Issues

How to Exclude a Subfolder from OneDrive Known Folder Backup

Amos Gikunda Oct 10, 2026 870 views

Question details

The user wants to prevent specific subfolders located within protected OneDrive folders (such as Documents, Desktop, or Pictures) from being backed up to the cloud.

How to Exclude a Subfolder from OneDrive Known Folder Backup

Product: OneDrive
Device & OS: not provided
Scenario: Attempting to selectively exclude local subfolders from OneDrive's automatic Known Folder backup without removing them from the computer.
Observed behavior: The "Choose folders" setting does not prevent backups; it only makes the selected local files online-only. Attempting to deselect subfolders triggers a "Can't stop syncing folder" error message.

Before you start

Understand that OneDrive's 'Choose folders' feature manages local synchronization, not the initial backup to the cloud. Unchecking a folder there removes it from your local drive but keeps it safely stored in your OneDrive.

Solution 1Recommended

Move Subfolders Outside Protected Known Folders

Since Microsoft currently does not provide a supported setting to exclude individual subfolders from Known Folder backup, the most reliable workaround is to relocate the folder outside of the protected directories.

OneDrive is designed to unconditionally back up all contents within the Desktop, Documents, and Pictures folders when Known Folder Backup is active. To keep a folder strictly local, it must reside outside these paths.

Locate the target subfolder

Open File Explorer and navigate to your Documents, Desktop, or Pictures folder to find the specific subfolder you want to exclude from OneDrive backup.

Cut the folder

Right-click on the subfolder and select 'Cut' from the context menu, or select the folder and press Ctrl+X on your keyboard.

Paste the folder into an unprotected location

Navigate to a directory that is not synced by OneDrive, such as your C: drive root (e.g., C:\LocalData) or another local partition. Right-click in the empty space and select 'Paste' (or press Ctrl+V).

Move Subfolders Outside Protected Known Folders

Software Paths: If a specific program requires its temporary or cache files to remain in the Documents folder, consider checking the software's settings to change its default save or cache path to your new, unprotected location.

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Frequently Asked Questions

Why does unchecking a folder in OneDrive settings not exclude it from backup?

The 'Choose folders' option controls which files are actively downloaded from the cloud to your local device. Unchecking a folder makes those files 'online-only,' meaning they are deleted from your local drive to save space but remain backed up in your cloud storage.

What happens when I see 'Can't stop syncing folder' in OneDrive?

This message appears when you attempt to deselect a Known Folder (like Documents or Pictures) or a subfolder within it while the PC folder backup feature is actively protecting that entire directory.

Will Microsoft add a feature to exclude specific subfolders in the future?

Many users have requested this functionality. While it is not supported currently, Microsoft continually updates OneDrive based on user feedback. You can submit or vote for this feature request directly through the Microsoft Feedback Portal.

Document & File Issues