With a system restoration, you may be able to recover your data if you've reset your system to factory defaults. If you’ve backed up your content, you can follow these steps to recover data: Settings>System>Backup and Restore>Restore PS4 then, choose the files you’d like to retrieve and attempt to restore any lost data. Fortunately, you can recover a lot of your saved progress and games by signing into your PlayStation account (or the corresponding account with your game such as Bethesda or Epic Games account).