Find and switch your default microphone in Settings

Windows 11 lets you pick which microphone your computer uses when you're on a call, recording audio, or using voice commands. The fastest way is through the Sound settings panel. Open Settings (press Windows key + I), go to System, then Sound. Scroll down to "Advanced" and select "Volume mixer"—you'll see a list of apps and which microphone each one is using.

To change the default microphone for all apps at once, stay in the Sound settings page and look for "Input devices" near the top. You'll see your connected microphones listed there. Click the one you want to use by default, and Windows will remember that choice for future calls and recordings.

Key Takeaways

  • Your default microphone is set in Settings > System > Sound > Volume mixer, where you can see which device each app is using.
  • Some apps (Teams, Zoom, Discord) let you override the Windows default and pick a different microphone inside their own settings.
  • If your microphone doesn't appear in the list, check that it's plugged in or paired, and restart Windows if it still doesn't show.
  • Built-in laptop microphones and USB headsets both appear in the same list—Windows treats them the same way.

Check that your microphone is actually connected

Before you change the default, make sure Windows can see your microphone. If you're using a USB headset or external microphone, plug it in and wait a few seconds for Windows to recognize it. If it's a Bluetooth microphone, make sure it's paired first—go to Settings > Bluetooth & devices > Bluetooth and check that your device shows as "Connected".

If your microphone still doesn't appear in the Sound settings, restart your computer. Windows sometimes needs a reboot to detect new audio hardware. After restarting, go back to Settings > System > Sound and check the Input devices list again.

Override the default microphone in individual apps

Some programs let you pick a different microphone than the Windows default. Microsoft Teams, Zoom, Discord, and Google Meet all have their own microphone settings. Open the app, look for Settings or Preferences, then find the Audio or Microphone section. You'll see a dropdown menu with all connected microphones—select the one you want.

This is useful if you want to use your USB headset for calls but your built-in microphone for voice commands. The app-level setting overrides the Windows default, so you can have different microphones for different purposes without changing the system-wide setting each time.

Disable a microphone you don't want to use

If you have multiple microphones connected and Windows keeps using the wrong one, you can disable the ones you don't need. Right-click on a microphone in Settings > System > Sound > Volume mixer and select "Disable". That microphone won't appear in app menus anymore, and Windows won't try to use it.

You can re-enable it later the same way—right-click and select "Enable". This is cleaner than unplugging devices, especially if you use different microphones for different tasks and want to switch between them without physically disconnecting anything.

Test your microphone after changing it

After you set a new default microphone, test it to make sure it's working. In Settings > System > Sound, scroll down to "Input" and look for "Test your microphone". Speak into the microphone and watch the blue bar move as you talk. If the bar doesn't move, the microphone isn't picking up sound—check that it's not muted and that the cable is fully plugged in.

If the test bar moves but apps still can't hear you, the microphone may be muted inside that specific app. Open the app's settings and look for a mute button or microphone toggle. Some apps also ask for permission to use your microphone the first time you open them—if you denied permission, go to Settings > Privacy & security > Microphone and turn it on for that app.

Fix a microphone that stopped working

If a microphone was working and suddenly stopped, first check that it's still plugged in or paired. Unplug it, wait 10 seconds, and plug it back in. If it's Bluetooth, forget the device in Settings > Bluetooth & devices, then pair it again.

If that doesn't work, right-click on the microphone in Settings > System > Sound > Volume mixer and select "Troubleshoot". Windows will run a quick check and may fix the problem automatically. If the microphone still doesn't work after troubleshooting, the hardware itself may be damaged—try it on another computer to confirm.

Frequently Asked Questions

Why does Windows keep switching back to my built-in microphone?

Some apps reset to the Windows default microphone each time you restart them. Check the app's own settings—Teams, Zoom, and Discord all have microphone menus inside Preferences or Settings. Set your preferred microphone there, and the app should remember it. If Windows itself keeps resetting, disable your built-in microphone in Sound settings so it can't be selected.

Can I use different microphones for different apps?

Yes. Set one microphone as the Windows default in Settings > System > Sound, then open each app and override it in that app's settings. Teams might use your USB headset while Discord uses your Bluetooth microphone—each app remembers its own choice independently.

My microphone appears in Settings but apps can't find it—what's wrong?

Check that the app has permission to use your microphone. Go to Settings > Privacy & security > Microphone and make sure the toggle is on. If it's already on, turn it off and back on again. Some apps also need permission the first time you use them—look for a popup asking to allow microphone access.

What if I have a USB microphone and a headset plugged in at the same time?

Both will appear in Settings > System > Sound > Volume mixer. Set one as the default, then override it in individual apps if you want to use the other one. You can also disable whichever one you're not using so it doesn't clutter the microphone menus.

Do I need to restart Windows after changing my default microphone?

No. The change takes effect when ready in most cases. If an app was already running when you changed the default, close and reopen that app so it picks up the new setting.