There are times when the microphone on Windows gets blocked by an application and Google Meet reports that the microphone can’t be used during the meeting.
The following steps will allow users to unmute the microphone so it can be used in Google Meet.
Procedure
Open the Control Panel
Click on Hardware and Sound
Click on Manage audio devices under Sound
Click on the Recording tab
Right-click the microphone that you are using (headset, laptop microphone, etc.) and click Properties
Click on the Levels tab
Unmute the microphone with the button next to the microphone slider
Click Ok to apply the changes