Settings Lock is a simple program with which you can stop Windows users accessing the configuration of some of the most important programs, and modifying some of their values.
In total there are 15 configuration options that Settings Lock protects: system clock, restoration points, video properties, Internet options, install/uninstall programs, user accounts, system properties, task administrator, etc.
To be able to modify any of these values, you need to insert the administrator password into Settings Lock, because if not the files will be permanently blocked.