How can I stop video flickering when when I use the Windows Camera application? 
The Windows camera application has a flicker reduction setting that can be changed if you are experiencing camera flickering. If you experience this, we recommend adjusting the video camera flicker reduction rate using the steps below.
- Type Camera in the Windows search box and select the Camera application from the list of search results.
 - Click the settings icon 
 - .Scroll down and change the Flicker Reduction setting to 50Hz.