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How to Resolve OneDrive Synchronization Errors After Data Migration
Question details
The user needs to resolve bulk OneDrive sync errors and duplicate files that appeared after transferring company files using a third-party copy tool.
- Product
- OneDrive
- Device & OS
- not provided
- Scenario
- Migrating company files to OneDrive using a third-party copy tool.
- Observed behavior
- Hundreds of files show synchronization errors on a single local computer, with both older and newer versions of files appearing as duplicates. These duplicate files are not visible in OneDrive for the web, and some non-duplicated files also display sync errors.
Before proceeding, ensure you have a stable internet connection and pause any ongoing file migrations to prevent generating further synchronization conflicts.
Verify Files in OneDrive for the Web
Compare your local files with the online version to determine if the synchronization errors are isolated to your computer.
By checking the web version of OneDrive, you can quickly see the true state of your files on the cloud server. If the duplicate files do not appear online, the issue is strictly a local client synchronization problem.
Open a web browser, go to the official OneDrive website, and log in with your Microsoft 365 credentials.
Navigate to the folder containing the affected files and verify whether the duplicate files or older file versions exist in the cloud.
Check the creation and modification dates of the files on the web and compare them with the conflicting versions on your local machine to determine which file holds the most recent data.
Open File Explorer on your computer and review the OneDrive sync-status icons next to the files to identify specific error indicators (like a red X).
Escalate to a Microsoft 365 Administrator
Since the issue involves hundreds of files following a company-wide migration, tenant logs must be reviewed by Microsoft Support.
Experience Seamless File Management with WPS Office
If you frequently encounter syncing issues and complex file management errors with Microsoft Office, consider switching to WPS Office. It provides a lightweight, highly compatible alternative that integrates easily with your favorite local and cloud storage providers without the heavy synchronization overhead.
- 1. Visit the official website: Go to the WPS Office website to download the latest version.
- 2. Download the installer: Click the 'Free Download' button to get the lightweight installation package.
- 3. Install and launch: Run the installer, follow the on-screen instructions, and easily migrate your workflow.
Frequently Asked Questions
Is there a built-in command in OneDrive to delete all duplicate files?
No, OneDrive does not feature a single built-in command that reliably identifies and removes duplicate files caused by third-party migration tools. Dealing with mass duplicates usually requires manual cleanup or opening a support ticket with Microsoft.
Why do my OneDrive files have both older and newer versions locally?
This happens when the local OneDrive client detects a metadata or version conflict with the server during synchronization. To prevent accidental data loss, it preserves both versions until the conflict is manually resolved.
What does a red cross icon mean on my OneDrive files?
A red cross icon indicates a synchronization error. This means the file or folder cannot be uploaded to or downloaded from the cloud, often due to file conflicts, invalid characters in the filename, or a lack of storage space.
