Settings app in Windows 10 is actually meant to replace the traditional Control Panel dependency, and thus most of the default features and settings of Control Panel are incorporated in the settings app of Windows 10 too. Thus it is recommended to disable the settings when you let any random user use your PC. Control Panel and Settings app are the main two interfaces from where all the default settings of your Windows 10 OS can by modified and messed up as well if fallen on wrong hands. If you are handing over your PC to someone else for a while, you better disable both your Control Panel and Settings app in Windows 10 OS PC.
