System protection is a feature that allows you to undo unwanted system changes by being able to do a System Restore. System Restore enables users, in the event of a problem, to restore their computers to a previous state (restore point) without losing personal data files.
System Restore is enabled and turned on for the Windows system drive by default in Windows.
System Restore configuration allows you to turn protection on and off for drives, manage disk space usage for restore points, and delete restore points.
If you like, you can disable System Restore configuration to gray out the Configure button in the System Protection tab in System Properties.
This tutorial will show you how to enable or disable System Restore configuration in Windows 7, Windows 8, and Windows 10.