Good Day PorcupineTheCat,
My name is Carlo, I'm an Independent Advisor and community member like you.
I am also using Windows 10 pc. Let us work together to sort this out.
-Check if the port is properly connected.
-If you have other pc , try to plug the Microphone using other device for us to isolate if this an issue with the Microphone or the computer itself.
Here's the steps you can try.
Run the Microphone troubleshooter
-Press Windows key + X
-Go to Settings
-Click Update and Security
-Click Troubleshoot then “additional troubleshooter
-Look for Speech click it and run the troubleshooter.
Once done proceed with these steps
-Press Windows key + X
-Click Device Manager
-On the device manager look for Audio input and output and expand it
-Right click on Microphone and Uninstall
After restart the driver will be automatically installed.
Restart your device.
if issue persist try to use an old driver that was installed in your device before.
-Press Windows key + X
-Go to Device Manager
-Expand the Audio input Output
-Look for Microphone driver that was installed
-Right click and Update
-Look for "Browse my computer for driver
-Let me pick drivers available drivers
-Choose an old driver and use it.
I hope the information above helps. Please let me know how it goes.
Have a wonderful day ahead and stay safe.
With Warm Regards,
Carlo T.