You can test your webcam online or using programs that come with Windows 10 or your Mac. You don't have to wait for a video call to find out there's a problem with your webcam - test it ahead of time.

Restart your computer. Plug your webcam into another available USB port. Check your webcam cable. The cable might be damaged. Test your webcam on another working computer. The above steps will let you ...

If your Camera is not working in a virtual machine in Hyper-V or VirtualBox, and you see a black screen or an error stating ...

If your Samsung camera app lags, the shutter button misbehaves, the auto-focus is not working right, or the viewfinder crashes, you might encounter a "camera failed" prompt with no further explanation ...