OneDrive File Issues

How to Fix OneDrive Installation Error for a File Path That Is Too Long

Maira Mehtab Sep 22, 2026 868 views

Question details

The user needs to resolve an installation or synchronization failure in OneDrive caused by a path-length limitation error.

Product: Microsoft OneDrive
Device & OS: not provided
Scenario: Installing the OneDrive application or attempting to sync files when deeply nested folders or previously deleted long-path folders are present.
Observed behavior: OneDrive installation or synchronization stops and displays an error stating that the file path is too long, sometimes referencing a folder that was already deleted from SharePoint or OneDrive.

Before you start

Ensure that your computer is connected to a stable network and close any active Microsoft Office applications before attempting to reset or reinstall your OneDrive client.

Solution 1Recommended

Reset OneDrive and Remove Obsolete Folder Mappings

Resetting the OneDrive client forces a full sync check and helps clear out cached paths or shortcuts that might be triggering the long path error.

Often, OneDrive retains memory of deleted SharePoint or OneDrive folders through stale local shortcuts or library mappings. Resetting the app clears these ghost connections.

Open the Run dialog

Press the Windows key + R simultaneously on your keyboard to open the Run command window.

Execute the reset command

Type `%localappdata%\Microsoft\OneDrive\onedrive.exe /reset` into the text box and click OK. The OneDrive icon in your system tray will disappear and reappear after a minute or two.

Clear stale mappings

Open File Explorer and navigate to your OneDrive folder. Look for any shortcut icons or folders that reference the previously deleted long-path directories and delete them manually.

Restart synchronization

Launch OneDrive from your Start menu if it does not restart automatically, and allow it to perform a fresh synchronization of your files.

Reinstallation Note: If resetting does not work, you can uninstall OneDrive from the Apps & Features menu and reinstall it, but only after manually verifying that the obsolete deeply nested local folders have been deleted.

Solution 2

Shorten File Names and Move Deeply Nested Folders

Since OneDrive has a strict character limit for file paths, manually reducing the length of your file names and folder structures prevents sync failures.

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Frequently Asked Questions

What is the maximum file path length supported by OneDrive?

The entire decoded file path, including the file name and all folder names, cannot exceed 400 characters for OneDrive, OneDrive for Business, and SharePoint in Microsoft 365.

Why does the error occur for a folder I have already deleted?

OneDrive may still hold a cached shortcut, a library mapping, or a stale local folder on your hard drive that references the deleted path. Resetting the OneDrive app usually clears this cache.

Can I bypass the path limit by enabling long paths in Windows Registry?

Even if you enable long paths in Windows 10 or 11 Registry to bypass the 260-character local limit, OneDrive's syncing engine strictly enforces its own maximum character limit across devices. Shortening file names remains the most reliable solution.

How do I find out exactly which file path is too long in OneDrive?

Click the OneDrive cloud icon in your system tray and select 'View sync problems' or review the active error list. It will typically display the exact file or folder path that is triggering the length restriction.

Document & File Issues