This issue occurs when the Windows Update servicing stack incorrectly skips installing the newer version of some critical drivers in the cumulative update and uninstalls the currently active drivers during maintenance. After that many USB devices, onboard devices, Built-in laptop cameras, keyboards, or mice stopped working.
If the Logitech C920 is detected but not working it is because of KB4074588 (OS Build 16299.248) update. What Causes Logitect C920 Webcam Not Detected or Working