Firstly, you should ensure that the apps have access to the microphone. If it stopped working after you have updated Windows 10 then you need to give permission to the apps so that they can be used. You can do it with the help of the steps mentioned below:
· Click on ‘Start’ and then go to the settings
· Click on ‘Privacy’ and then choose ‘Microphone’
· Tap on ‘Change’ and then switch on ‘Allow apps to access your microphone’
· Once you have granted access to the microphone, select which Microsoft store app can get access to the features
· Select ‘Choose which Microsoft store apps can access your microphone’ and grant permission to the non-Microsoft store apps
· You can do it by switching the ‘Allow desktop apps to access your microphone’ to ‘On’