However, the files, software, or other applications that are created after creating the restore point, will get deleted from the computer. Restoring the system will not affect those files that are stored in the system before creating the restore point. System Restore will undo any changes that are made to the system since the selected restore point was created. When the system is restored, it will come to the previous state. Before performing System Restore on Windows XP, Vista or Windows 7 it is important to close all the programs because Windows needs to be restarted during this process. System Restore is a process to undo system changes without affecting personal information such as email, documents, photos, videos, etc.