System Restore helps you restore your computer’s system files to an earlier point in time. It’s a way to undo system changes to your computer without affecting your personal files, such as e‑mail, documents, or photos. It uses a Windows built-in feature called System Protection to regularly create and save Restore Point on your computer so that it can be easily rolled back when needed. However, Windows 7 doesn’t provide you a way to explore what’s being saved inside every single restore point.