1. Right click on the audio icon in the lower left corner.
  2. Select Sounds from the context menu.
  3. Shift to the Recording tab at the top.
  4. Choose the default microphone device and then click on the Properties button at the bottom right.
  5. Now, navigate to the Levels tab.
  6. If the volume icon shows your mic is muted, please click on it to unmute microphone.
  7. Click on the OK button to confirm and close the Properties window.
  8. Click OK again to close the Sound window.
  9. If the microphone device is not muted, you should move the volume slider to the right to increase the volume and then click OK.