OneDrive File Issues

How to Fix OneDrive Upload Failed and File Conflict Errors

Anum Mushtaq Oct 19, 2026 868 views

Question details

The user is encountering an upload failure and file conflict message in OneDrive, even when no one else is currently editing the document.

Product: Microsoft OneDrive and Microsoft Word
Device & OS: not provided
Scenario: Synchronizing a Word document across multiple devices using Microsoft OneDrive.
Observed behavior: OneDrive displays an 'Upload failed' message and reports a file conflict, preventing the user from saving their most recent document edits.

Before you start

Verify that your internet connection is stable and ensure you have saved a local copy of your current document progress to prevent any accidental data loss during troubleshooting.

Solution 1Recommended

Close the Document on All Other Devices

Resolve immediate file conflicts by ensuring the document is completely closed on any other devices where you might be signed in.

File conflicts generally occur when OneDrive detects that a file is open, cached, or actively syncing on a different device (like a secondary laptop, tablet, or mobile phone). OneDrive treats these instances as multiple users attempting to edit the same file simultaneously.

Save a local copy

In your currently open document, use the 'Save As' function to save a copy locally to your desktop or downloads folder to secure your latest changes.

Check secondary devices

Physically check or remotely log out of all other devices where Microsoft Word or OneDrive might be running and close the application entirely.

Allow sync time

Wait a few moments for OneDrive to process the changes and clear the conflict status in the cloud.

Reopen and save

Reopen the original document on your primary device. The conflict should be resolved, allowing you to save and upload successfully.

Solution 2

Reset the OneDrive Application

Clear OneDrive's synchronization cache to resolve stubborn upload failures and stuck file conflict messages.

Free Microsoft Office alternative

Experience Seamless Syncing with WPS Office

Tired of encountering file conflicts and upload errors? Switch to WPS Office, a free, lightweight, and highly compatible alternative to Microsoft Office. With its powerful built-in WPS Cloud, you can safely sync, auto-save, and co-edit documents without the frustration of sync blockages.

1. Download WPS Office: Visit the official WPS Office website and download the free installation package.
2. Install the Application: Run the installer and follow the quick on-screen instructions to set up the software.
3. Open and Sync Easily: Open your existing Word documents directly in WPS Office. Sign in to your WPS account to enjoy seamless cloud saving and editing.

Highly compatible with Microsoft Word, Excel, and PowerPoint formats.Built-in WPS Cloud for reliable, real-time document synchronization.Lightweight design ensures fast loading and smooth editing.

microsoft office alternative - wps office

Frequently Asked Questions

Why does OneDrive say file conflict when I am the only person editing the document?

This usually happens if the document is left open, cached in memory, or stuck in a sync cycle on another device you own. OneDrive's system interprets these separate instances as multiple users trying to edit the document simultaneously.

Will I lose my changes if I encounter an upload failed error?

You do not have to lose your changes. Before closing the problematic document, always use the 'Save As' feature to save a copy directly to a local folder on your computer. Once the sync issue is fixed, you can manually update the cloud version.

How can I force OneDrive to sync a specific file?

You can force a sync by right-clicking the OneDrive icon in your system tray, selecting 'Pause syncing', and then immediately selecting 'Resume syncing'. Alternatively, moving the file out of the OneDrive folder and then back into it can trigger a fresh sync process.

Document & File Issues