OneDrive File Issues

How to Remove Duplicate OneDrive Files with the Copy Suffix

Ayan Masood Oct 19, 2026 868 views

Question details

The user needs a method to remove duplicate files created with a 'Copy' suffix after re-enabling OneDrive backups and to rename the remaining files in bulk.

How to Remove Duplicate OneDrive Files with the Copy Suffix

Product: OneDrive
Device & OS: not provided
Scenario: Re-enabling OneDrive backup for Desktop, Documents, and Pictures folders results in identical files across locations.
Observed behavior: OneDrive creates duplicate files by appending a 'Copy' suffix when files with matching names exist, making it difficult to identify and clean up the latest versions.

Before you start

Verify that your OneDrive folder is not configured to the exact same location as the Desktop or Documents folder being backed up, as this can cause synchronization loops. Ensure you have backed up your current files to an external drive before making bulk deletions.

Solution 1Recommended

Remove Duplicate Files Manually Using File Explorer

Search and delete duplicated files using File Explorer's built-in search function to filter the Copy suffix.

OneDrive does not provide a built-in tool to automatically delete older files and strip the 'Copy' suffix. The most direct method is using File Explorer to filter out the duplicates so you can review and delete them safely.

Open File Explorer

Press Windows Key + E to open File Explorer and navigate to your synced OneDrive folder.

Search for the Suffix

In the search bar at the top right corner, type '- Copy' or 'Copy' to filter all files containing this exact suffix.

Review and Delete

Carefully review the filtered list to ensure these are the duplicates you want to remove. Select the unwanted files, right-click, and choose Delete.

Rename Remaining Files

Clear the search bar. For any remaining files that need their names adjusted, right-click the file and select Rename (or press F2) to manually remove any unwanted text.

Remove Duplicate Files Manually Using File Explorer

Backup Recommended: Always copy the filtered files to a temporary local folder before deleting them from OneDrive, so you can restore them if a mistake is made.

Solution 2

Automate Bulk Processing with Power Automate

Use Microsoft Power Automate to create a custom flow that automatically deletes duplicates and renames files in bulk.

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Frequently Asked Questions

Why does OneDrive add a Copy suffix to my synced files?

When folders are synced across devices or when PC folder backups are re-enabled, files with identical names may already exist in both locations. OneDrive adds a 'Copy' suffix to one of the files to prevent overwriting your existing data, ensuring no changes are accidentally lost.

Is there a built-in OneDrive feature to delete all Copy files at once?

No, OneDrive does not currently offer a built-in deduplication tool to automatically remove files with the 'Copy' suffix or rename them in bulk. You must delete and rename them manually using File Explorer or utilize automation tools like Power Automate.

How can I prevent OneDrive from duplicating files in the future?

Ensure your OneDrive sync settings are properly configured. Specifically, check that your main OneDrive folder is not set as the exact same location as the Desktop, Documents, or Pictures folders you are trying to back up, as overlapping directories often cause synchronization loops and duplicate files.

Document & File Issues