System Restore is a feature in Microsoft Windows that allows users to revert their computer's system files and settings to a previous state. This can be helpful when a recent change, such as a software installation or update, causes problems. By using System Restore, users can recover their system without losing personal files like documents and photos. To use System Restore, users can access it through the Control Panel or by searching in the Start Menu. The process involves selecting a restore point, which is a saved snapshot of the system's configuration. Once confirmed, the computer will restart and apply the changes, restoring it to the chosen point in time.