Deleted File Recovery

How to Recover Missing Files Deleted by System Account in OneDrive and SharePoint

Partner Editor Oct 8, 2026 869 views

Question details

Users are experiencing files unexpectedly disappearing from OneDrive and SharePoint, with activity logs showing they were deleted by the 'System' account.

How to Recover Missing Files Deleted by the System Account in OneDrive and SharePoint

Product: Microsoft OneDrive and SharePoint
Device & OS: not provided
Scenario: Attempting to locate and restore files that mysteriously vanished and appear as deleted by the system rather than a user.
Observed behavior: Files are missing from their original folders and document libraries. Audit logs or alerts indicate that the 'System' account initiated the file deletion.

Before you start

Ensure you have the necessary permissions, such as Site Owner or Microsoft 365 Administrator access, to view all recycle bins and contact Microsoft Support if a backend investigation is required.

Solution 1Recommended

Restore Files from OneDrive and SharePoint Recycle Bins

The quickest and most common way to recover missing files is to check the first and second-stage recycle bins within the platform.

When files are deleted, even by system processes, they are usually sent to the platform's Recycle Bin where they are kept for up to 93 days before permanent deletion.

Access the Recycle Bin

Restore the missing files

Locate and select the check box next to the files that were deleted by the System account, then click 'Restore' from the top menu.

Check the Second-stage recycle bin

If the files are not in the primary recycle bin, scroll to the bottom of the page and click 'Second-stage recycle bin' (requires Site Collection Admin rights) to search and restore from there.

Restore Files from OneDrive and SharePoint Recycle Bins

Restoration Location: Files restored from the recycle bins will automatically return to their original folders and locations.

Solution 2

Review Document Version History

If the file itself exists but its contents were overwritten or deleted by a system sync glitch, restoring a previous version can recover your data.

Solution 3

Contact Microsoft 365 Support for Backend Recovery

If the files are completely missing from all recycle bins, administrators must request a backend investigation and recovery from Microsoft.

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Frequently Asked Questions

Why does the System account delete files in SharePoint and OneDrive?

The 'System' account may delete files due to automated retention policies set by your organization, malware infections triggering automated safeguards, conflicting third-party synchronization tools, or backend site maintenance scripts.

How long do deleted files stay in the SharePoint Recycle Bin?

Files typically remain in the SharePoint and OneDrive Recycle Bins for 93 days from the time of original deletion. After this period, they are permanently deleted and can only be recovered via a Microsoft backend restore within a strict 14-day window.

Can I recover files if I am not an administrator?

As a standard user, you can recover files from the primary Recycle Bin or version history. However, if files are missing from the primary bin or require backend recovery from Microsoft Support, you must contact your organization's Microsoft 365 administrator for assistance.

Migration & Recovery