Microphone not working

[Anubhav]

My microphone not working , it's working day and another day it's not working .if i uninstall it and install it again it's working but another day same issue I'm facing .

[mspeechley]

It would be difficult to say what's going on without looking at your system, but it sounds to me like something is taking over your microphone, which prevents Zoom getting access to it.  Do you have any other applications running that might be using it?  Skype, Teams, or some other web conferencing app?  A recording application?