OneDrive for Business Known Folder Move creates duplicate folders for remote staff: Fix Guide

Remote staff who use Known Folder Move to back up Desktop, Documents, and Pictures to OneDrive for Business sometimes see duplicate folders appear in File Explorer. Instead of a single Documents folder, they see Documents, Documents (1), or Documents – CompanyName. This duplication breaks file paths, confuses users, and blocks automated workflows. The root cause is a naming conflict between the local folder structure and the OneDrive-side folder structure, often triggered when a device was previously synced under a different tenant or when the folder was moved manually before Known Folder Move was enabled. This guide explains why duplicates occur and provides a step-by-step fix to remove the extra folders without losing data.

Why Known Folder Move Creates Duplicate Folders for Remote Staff

Known Folder Move redirects the Desktop, Documents, and Pictures folders to OneDrive. When a remote staff member signs into a new device or rejoins a device that was previously synced under a different Microsoft 365 tenant, OneDrive detects that the local folder path already exists in the cloud. To avoid overwriting data, OneDrive appends a numeric suffix such as (1) or a company name suffix to the cloud-side folder. The result is two folders: the original folder that OneDrive expects and a duplicate folder that contains the user’s files.

Another common trigger is when the user manually moved their Documents folder to a different drive letter before Known Folder Move was enabled. OneDrive then creates a new Documents folder in the default location and treats the manually moved folder as a separate entity. Remote staff who connect via VPN or a slow WAN link may also see duplicates because the initial folder comparison takes longer, causing OneDrive to create a temporary placeholder folder that later becomes a permanent duplicate.

The duplicate folder is not synced bidirectionally. Files saved to the duplicate folder stay in the duplicate folder and do not sync to the original folder. This breaks shortcuts, mapped drives, and any application that relies on the standard folder path.

Steps to Remove Duplicate Folders Without Losing Files

The fix has two phases. First, you move the files from the duplicate folder into the correct folder. Second, you disable and re-enable Known Folder Move so that OneDrive recognizes the correct folder as the primary location. Perform these steps on the affected device while connected to the internet.

1. Open OneDrive Settings
   Right-click the OneDrive cloud icon in the system tray notification area and select Settings. If the icon is hidden, click the up arrow to show hidden icons first.
2. Go to Sync and backup
   In the OneDrive Settings window, click the Sync and backup tab. Click the Manage backup button under the Backup section.
3. Identify the duplicate folder in File Explorer
   Open File Explorer and navigate to your OneDrive folder. Look for a folder named Documents (1), Desktop (1), or Pictures (1). If you see a folder with your company name appended, that is also a duplicate. Do not delete this folder yet.
4. Move files from the duplicate folder to the correct folder
   Open the duplicate folder. Press Ctrl+A to select all files and folders inside. Press Ctrl+X to cut them. Navigate to the correct folder (Documents, Desktop, or Pictures) inside your OneDrive folder. Press Ctrl+V to paste the files. If any files have the same name, choose to keep both versions and rename the conflicting files to avoid overwriting.
5. Stop Known Folder Move for the affected folder
   Return to the OneDrive Manage backup window. Click Stop backup next to the folder that had the duplicate. A dialog warns that files will no longer be backed up. Click Stop backup to confirm. This removes the folder redirection but leaves the files in place.
6. Delete the empty duplicate folder
   Go back to File Explorer. The duplicate folder should now be empty because you moved all files. Right-click the empty duplicate folder and select Delete. Press Shift+Delete to permanently remove the folder without sending it to the Recycle Bin.
7. Re-enable Known Folder Move
   In the OneDrive Manage backup window, click the Manage backup button again. For the folder you just stopped, click Start backup. OneDrive will now redirect the correct folder and will not create a duplicate because the conflicting folder no longer exists.
8. Verify the folder structure
   Open File Explorer and confirm that only one Documents, Desktop, or Pictures folder appears inside your OneDrive folder. Open each folder and verify that your files are present.

If Duplicate Folders Still Appear After the Main Fix

OneDrive shows the duplicate folder after re-enabling Known Folder Move

This usually means that OneDrive still has a cached reference to the old duplicate folder. Sign out of OneDrive and sign back in. Right-click the OneDrive cloud icon, select Settings, click the Account tab, and click Unlink this PC. Follow the prompts to sign out. Then sign in again with the same work or school account. OneDrive will re-sync the folder structure and should use only the correct folder.

The duplicate folder reappears after a reboot

A Group Policy setting may be forcing Known Folder Move to a specific folder name that conflicts with the local folder. Contact your IT administrator to check the policy at Computer Configuration > Administrative Templates > OneDrive > Set the default location for the OneDrive folder. If this policy is set to a path that already exists, duplicate folders will reappear. The administrator should clear or update the policy to point to the correct path.

Files in the duplicate folder are not syncing to the cloud

This confirms that the duplicate folder is not part of the synced OneDrive hierarchy. Repeat the file move steps in the main fix. After moving the files, pause and resume OneDrive sync by right-clicking the OneDrive icon and selecting Pause syncing and then Resume syncing. This forces OneDrive to re-evaluate the folder structure and sync the moved files.

Known Folder Move vs Manual Folder Redirection: Key Differences

Item	Known Folder Move	Manual Folder Redirection
Description	Built-in OneDrive feature that redirects Desktop, Documents, and Pictures to OneDrive	User or admin manually moves the folder to a new location and updates the registry or Group Policy
Duplicate folder risk	Low when used on a fresh device; medium when used on a device with pre-existing folders	High if the manual move conflicts with any other folder redirection method
Sync behavior	Bidirectional and automatic after redirection	Depends on how the folder was moved; may require manual sync configuration
Recovery from duplicates	Stop and restart Known Folder Move for the affected folder	Manually delete the duplicate folder and reapply the redirection path
IT management	Centrally controlled via Microsoft 365 admin center and Group Policy	Requires per-device configuration unless Group Policy folder redirection is used

Using Known Folder Move instead of manual folder redirection reduces the chance of duplicates because OneDrive manages the folder mapping automatically. Manual redirection should only be used when Known Folder Move is blocked by a tenant policy or when the user needs a custom folder path that Known Folder Move does not support.

You can now remove duplicate folders from Known Folder Move on any remote device by moving the files, stopping the backup, and re-enabling the feature. If duplicates persist, verify that no Group Policy is forcing a conflicting folder name. For future deployments, enable Known Folder Move on a clean device or a device where the folders have never been manually moved. To prevent duplicates at scale, configure the OneDrive policy to silently redirect known folders before users sign in for the first time.