Recently my webcam had been playing up when joining Microsoft Teams meetings. Sometimes i’d connect to a call, audio works but video doesn’t. I could toggle the show/hide video icon and it would start working but it got worse and wouildn’t work at all.

After a bit of digging I found this article on the web and it was the following Powershell command that fixed it…

Get-AppxPackage -allusers Microsoft.WindowsCamera | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}