How to Fix a Microphone That Isn't Working on Windows 10

If people can't hear you on a call, or your recording app shows no sound at all, the good news is that most "microphone not working" problems on Windows 10 come down to just a handful of settings. Work through the steps below in order — most people fix it in the first three.

Quick tip: after each step, test your mic at 123MicTest — it shows a live waveform and volume meter right in your browser, so you'll know immediately if the fix worked.

1. Check your physical connections

• Unplug and firmly re-plug your microphone or headset, making sure it's in the correct jack (pink/mic port, not the green headphone port, on desktops).
• If you're using a USB microphone, try a different USB port — some ports lose power or aren't recognized properly.
• For Bluetooth microphones/headsets, remove the device from Bluetooth settings and pair it again.

2. Allow microphone access in Windows privacy settings

Windows 10 blocks microphone access by default for privacy. Here's how to open it up:

• Open Settings → Privacy → Microphone.
• Turn on Allow apps to access your microphone.
• Scroll down and also enable Allow desktop apps to access your microphone.
• If you only need one app (e.g. Zoom or Chrome) to use the mic, scroll further and toggle that specific app on.

3. Set the correct default recording device

If you have more than one microphone (built-in laptop mic, USB mic, headset), Windows might be listening to the wrong one.

• Right-click the speaker icon in the taskbar and choose Sounds.
• Go to the Recording tab.
• Right-click the microphone you actually use and select Set as Default Device.
• Speak normally and watch the green level bars next to the device — they should move as you talk.

4. Check the input volume and make sure it isn't muted

• In the same Recording tab, double-click your microphone and open the Levels tab.
• Make sure the volume slider isn't at 0, and there's no mute icon (speaker with a red circle) next to it.
• If your mic sounds too quiet or too loud, set the level to around 70-80 and fine-tune from there.

5. Update or reinstall the audio driver

An outdated or corrupted driver is one of the most common hidden causes.

• Right-click the Start button and open Device Manager.
• Expand Audio inputs and outputs (or Sound, video and game controllers).
• Right-click your microphone/audio device and choose Update driver → Search automatically for drivers.
• If that doesn't help, right-click again and choose Uninstall device, then restart your PC — Windows will reinstall the driver automatically.

6. Run the Windows audio troubleshooter

• Go to Settings → Update & Security → Troubleshoot → Additional troubleshooters.
• Select Recording Audio and click Run the troubleshooter.
• Follow the prompts — Windows will detect and often fix common configuration issues automatically.

7. Check app-specific microphone settings

Sometimes Windows is fine, but the app itself is muted or pointed at the wrong device. Check the microphone/audio settings inside apps like Zoom, Teams, Discord, or your browser, and make sure the correct input device is selected there too.

8. Test your microphone instantly

Once you've made a change, don't guess — confirm it. Head over to 123MicTest's free online microphone test, click the mic icon, allow browser access if prompted, and speak. You'll see a live waveform and volume meter respond in real time, entirely in your browser — nothing is uploaded or recorded on a server.

Still stuck after trying all the steps above? It may be a hardware fault — try the microphone on another computer, or a different microphone on yours, to narrow it down. If you have feedback on this guide, feel free to reach out via the Contact page.