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No sound from the microphone on a Windows computer
After updating the system, I found that the microphone was not working. When I started testing it, it showed 0. Yesterday, I found that the speaker was not working. After searching online, I turned o...
Windows has a built-in troubleshooter:
Settings → Update & Security → Troubleshoot → Additional troubleshooters.
Select Recording Audio → Run the troubleshooter.
Follow on-screen instructions.