OneDrive File Issues

How to Fix OneDrive Repeatedly Showing Bulk File Deletion Prompts

Rana Garcia Sep 29, 2026 868 views

Question details

Multiple users are receiving repetitive alerts from OneDrive indicating that thousands of files are being deleted, despite no intentional user action.

How to Fix OneDrive Repeatedly Showing Bulk File Deletion Prompts

Product: Microsoft OneDrive
Device & OS: not provided
Scenario: Synchronizing local folders such as Desktop and Documents to OneDrive or a SharePoint site.
Observed behavior: OneDrive displays a persistent bulk deletion prompt warning that thousands of files (e.g., around 7,800 items) have been deleted and asks to confirm the removal across all devices.

Before you start

Temporarily pause your OneDrive synchronization from the taskbar settings to prevent any unintended permanent data loss while you investigate the root cause of the deletions.

Solution 1Recommended

Investigate Conflicting Software and Sync Logs

Identify if third-party security tools or backup applications are inadvertently moving or quarantining synced files in the background.

Often, background applications like strict antivirus software, automated PC backup tools, or file-management utilities can alter local folders. When these tools move or quarantine files from the Desktop or Documents folders, OneDrive registers this action as a mass deletion and triggers the bulk deletion prompt.

Pause OneDrive Sync

Click the OneDrive cloud icon in your system tray, select the Help & Settings gear icon, and choose 'Pause syncing' to halt further automated deletions.

Check Antivirus and Backup Logs

Open your third-party antivirus or backup application and review recent activity logs to see if it recently quarantined or relocated files from your synced user folders.

Review OneDrive Activity

Log in to OneDrive on the web, click the gear icon, and check 'OneDrive settings' or the 'Recycle bin' to verify exactly which files triggered the prompt and note their timestamps.

Investigate Conflicting Software and Sync Logs

Identify Patterns: If the exact same number of files (e.g., 7,800 items) is affected each time, it is highly likely an automated script or application conflict rather than user error.

Solution 2

Review Microsoft Purview Retention Policies

Check if an organizational retention policy applied to OneDrive or SharePoint is automatically purging files after a specific time period.

Solution 3

Submit a Microsoft Support Request

Because the issue affects multiple users and involves thousands of files, escalate the problem to Microsoft Support for detailed backend log analysis.

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Frequently Asked Questions

Can antivirus software cause OneDrive to show deletion prompts?

Yes, aggressive antivirus or security software might quarantine or remove files in your synced Desktop or Documents folders. OneDrive detects these missing files as deletions and mirrors the action by attempting to delete them from the cloud.

How do I recover thousands of files deleted by a OneDrive sync glitch?

You can recover them by logging into OneDrive on the web, navigating to the Recycle Bin in the left sidebar, selecting the affected files or folders, and clicking 'Restore'. Depending on your account, files are retained here for 30 to 93 days.

Why does the OneDrive prompt say thousands of files are being deleted at once?

The bulk deletion warning is a built-in safety mechanism. It triggers when a massive number of files are modified or removed simultaneously from local synced folders, warning you before it permanently applies these bulk changes to your cloud storage.

Document & File Issues