Repeated ransomware restores returning the wrong version call for diagnosis before another attempt. The question is not just how far back to go, but whether the selected content was clean, whether the environment stayed clean and whether the operation covered the right storage.
Determine when the wrong content appeared
Ask whether files were wrong immediately after restoration or became wrong again later. Record timestamps and affected URLs. The second pattern may indicate continued harmful activity or uploads from an unremediated device; send that evidence to the incident-response owner.
Use only the clean environment approved by IT. Do not reconnect an affected device to search for a newer copy. The Microsoft recovery sequence requires device cleanup before restoration.
Check a small, meaningful set of candidates
Select critical documents from different affected locations, not just the easiest file to open. Record the required content, source version and security-review result. A readable document can still be incomplete or unsuitable, and a familiar filename is not proof of clean content.
If a candidate predates the visible activity spike but remains damaged, investigate earlier evidence with IT. Do not simply choose one day or one week earlier and describe the result as guaranteed clean. Recovery must be based on inspected sources.
Confirm the storage and operation
Check whether the affected files belong to the user’s OneDrive, another user’s shared folder or a SharePoint library. Record what the prior operation actually targeted. A restore of one location cannot be assumed to cover every shared item visible in the OneDrive interface.
Before another broad rollback, preserve already recovered and unaffected work independently. Identify what the new attempt is expected to fix and which useful changes it could reverse. If only a few documents remain wrong, investigate those candidates individually.
Do not mistake availability settings for protection
Files On-Demand does not stop synchronization during an attack or create a clean local backup. A second synced copy may contain the same damage. Ask IT to validate any local or backup candidate before returning it to production.
If history lacks a suitable version, record that limitation and check approved backup coverage. Do not lower version limits, clear recycle bins or change retention settings as a way to make the missing candidate appear.
Document a defensible end state
Separate files recovered exactly, files reconstructed with owner approval and files still unresolved. Keep the source and reviewer for each important result. Security remediation and business-content acceptance are both required before normal use resumes; a successful command or a sample of readable files alone is not enough.