Try downloading the Logitech driver and saving it on your desktop. With the camera plugged in directly to a USB 2.0 on the computer (not a hub), reboot into safe mode, click on the .exe file you saved to your desktop and let the installation do its thing. Once finished, reboot again into regular mode.
https://www.amazon.com/Logitech-Desktop-Widescreen-Calling-Recording/dp/B004FHO5Y6