An error occurs if the microphone is disabled in your computer settings. To resolve the issue:
Press the Win + R key combination.
Type mmsys.cpl and press Enter.
Go to the Recording tab and double-click on your microphone.
Ensure the microphone status is set to "Enable":
Go to the Levels tab. If the volume indicator is crossed out, click on it and increase the volume:
Restart the Examus check.
Наглядный порядок действий вы можете увидеть на видео: