What is the location of the file for Windows 10 System Settings?

Solution 1:

When I Win+X and choose "System" I am taken to the System "About" page. Is that what you're looking for?

If so, you use ms-settings:about to access this page. Note: these are technically URIs rather than files, but the filepath to the actual systems application itself (which does nothing if you double-click, by the way) is %Windir%\ImmersiveControlPanel\SystemSettings.exe

Here is the complete list of URI commands available from Microsoft: https://docs.microsoft.com/en-us/windows/uwp/launch-resume/launch-settings-app#system

To run one of these URIs, I used Win+R rather than an elevated command line.