There are several different things you can do to resolve the issue, suitable for a variety of different scenarios.

Your drivers are out of date or corrupt.

Interference from other devices or programs open on your computer.

Your device's camera is turned off in the system settings.

Hardware issues with your camera or webcam.Here are some of the most common causes that users have reported in the last year: For example, it can happen if Zoom is not detecting your camera. There are some underlying issues that may cause your camera to not work with Zoom. This tutorial will show you how to fix any problems you might have with your camera not working in Zoom! Zoom - Why is my camera not working? It can be troubling and incredibly frustrating when you’re about to join a meeting or attend your online classes, but your camera isn't working or there is some other issue with your device during a Zoom meeting. But sometimes, things don't go as planned.

Zoom is a video conference program that allows people from different locations to connect and 'meet' using their webcam and microphone in real time. These are all terms that you might be hearing a lot these days with Zoom's popularity on the rise. Zoom, Zoom meeting, Zoom video conference, Zoom classes.

Zoom join meeting button greyed out