Key insights Roll back lets users restore their system or site to a previous working state from weeks or even months ago. This feature is available in Microsoft 365, providing an easy way to recover from issues without needing to rebuild sites. Known-good state refers to a backup or saved version that was stable and free of problems. The process helps save time and reduces the risk of losing important data during troubleshooting. Users can quickly undo unwanted changes, such as accidental deletions or configuration errors. This tool improves reliability and confidence when managing Microsoft 365 environments. Keywords Microsoft 365 rollback restore site previous version recover SharePoint backup data recovery office 365 restore