HI Gray. I'm Greg, 10 years awarded Windows MVP, here to help you.
It could be a hardware issue, after working through these fixes you'll know if WIndows is involved:
https://www.lifewire.com/fix-microphone-not-wor...
https://www.thewindowsclub.com/microphone-not-w...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://www.howtoedge.com/microphone-is-not-wor...
https://www.howto-connect.com/fix-windows-11-mi...
https://allthings.how/6-ways-to-fix-microphone-...
https://windowsreport.com/windows-11-microphone...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://appuals.com/microphone-not-working-wind...
(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://www.youtube.com/watch?v=cPpbOgBur1s
https://www.youtube.com/watch?v=1HMFOaF5HUg
Feel free to ask back any questions. If you'll report back results for each step it can help determine what else needs to be tried. I will stick with you until it is fixed.
If nothing there helps I'd ask for help at the best hardware forums, Tom's Hardware forums here:
https://forums.tomshardware.com/
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