Speaking of mic settings, check if Windows and other apps are allowed to use your microphone. Enable your microphone if it’s disabled.Right click in the empty space → select Show disabled devices.Open the Control Panel → select view by small icons.Steps to check if your microphone is enabled: If you disabled your microphone from your sound settings, your computer may not detect it. Sometimes, other USB devices might interfere with your microphone and even prevent the OS from recognizing it. Restart your device and check if you’re still getting the same error. If other peripherals are connected to your computer but you don’t actively use them, disconnect them. If dust and the port contact points were not the root-cause of your problem, pursue the following troubleshooting solutions. Check your microphone or headsets, inspect the cord for any traces of physical damage that might prevent the mic from working properly. If they’re damaged in any way, that could explain why you computer keeps saying the microphone is not plugged in. Check the contact points of the microphone port. Use a can of compressed air and dust off your computer jack and USB ports. Make sure there are no specks of dust inside your microphone jack or the USB port you’re using for connecting your USB microphone to your computer.