Yes, I'm logged in as a user with Administrator rights inside the user settings.
The Driver of the light sensor is listed as fine inside the device manager and I checked, if the latest update is installed.
But I'm unsure, what do you mean with "Computer Services"? Inside the "Windows Services" there are two services, related to sensors. By default, they do not run. While they do not run, the automatic brightness of Windows works as well. For debugging of my own application, I started both services - without any change. They are called "Sensor service" and "Sensor data service".
So imho, I think, I checked my system as well. My Question was, if there is any setting inside Windows, to re-allow a before blocked usage of the light sensor. An option to do this, I didn't find inside Windows (10)...