Stuck in a loop where your HP ZBook’s camera says "In Use" or you can’t find the elusive button to turn it on? You are not alone.
integrated directly into the top bezel above the camera lens. Texas Woman's University hp zbook camera button free
In technician jargon, a "free" button is one that is physically unresponsive. It is not "free" as in "no cost." It is "free" as in "stuck in a free-floating, non-tactile state." HP ZBook Camera Button Free: The Complete Guide
The HP ZBook's Camera Button-Free Design here is the actual fix:
If you don't want to install the 500MB myHP suite, here is the actual fix: