Microsoft Teams Mic Not Working? Fix Windows 11 Access and Meeting Mute

Microsoft Teams microphone not working on a Windows PC is usually fixed by unmuting the correct device, selecting that device in Teams, allowing Windows microphone access, or resolving an organizer policy that prevents attendees from speaking. These steps cover the current Microsoft Teams desktop app and Teams for the web on Windows 11. Windows 10 paths are included where useful, but Microsoft support for Windows 10 ended on October 14, 2025.

1. Rule out a mute button, loose connection, or Bluetooth conflict​

Before changing Teams settings, make sure Windows can actually receive sound from the microphone.

1. Check the headset inline control, boom-arm mute switch, USB microphone mute button, or webcam privacy/mute control.
2. Disconnect and reconnect a wired USB headset or microphone. If it uses a 3.5 mm plug, push it in fully.
3. For Bluetooth audio:
   • Charge the headset.
   • Turn Bluetooth off and back on.
   • Confirm the headset shows as connected in Start > Settings > Bluetooth & devices.
   • Disconnect it from a phone, tablet, or another PC that may have claimed the microphone.
4. Leave and rejoin the Teams meeting if you connected the microphone after entering it.
5. In the Teams meeting controls, select Mic to unmute.

You can also use Ctrl + Shift + M to toggle mute in a Teams meeting. If the microphone icon remains dimmed after you try to unmute, skip to the meeting-permissions section below.

2. Select the microphone inside Microsoft Teams​

Teams has its own microphone selection. A microphone that works in Windows is not necessarily the microphone Teams is currently using.

1. Open Teams.
2. Select Settings and more next to your profile picture.
3. Select Settings > Devices.
4. Under Audio > Audio settings, open the Microphone list.
5. Select the headset, webcam, USB microphone, or built-in microphone you intend to use.
6. Select Make a test call.
7. Speak normally and wait for Teams to play back the recorded test.

If the test call is audible, Teams can access the selected device. Join or rejoin the meeting and confirm the microphone button is unmuted.
To switch devices while already in a meeting:

1. Select the arrow next to Mic in the meeting controls.
2. Select More audio settings.
3. Under Microphone, choose the correct device.

If you use a supported Teams-certified headset, turn on Sync device buttons in Settings > Devices > Audio settings. This helps Teams recognize the headset’s physical mute and call-control buttons.

3. Test the microphone in Windows before blaming Teams​

A Windows recording test separates a Teams configuration issue from a device, driver, or permission issue.

1. Open Start > Settings > System > Sound.
2. Under Input, select the microphone under Choose a device for speaking or recording.
3. Select the arrow or device entry to open its properties.
4. Under Microphone test, select Start test.
5. Speak into the microphone for several seconds.
6. Select Stop test, then select Play under Recorded sample.

If the recording is silent:

• Confirm the correct microphone is selected under Input.
• Raise Input volume in the microphone properties.
• Move closer to the microphone and make sure the correct side of a directional microphone faces you.
• Return to Fix 1 and test a different USB port, cable, or headset if available.

If the recording plays correctly but Teams does not hear you, continue with Teams and privacy permissions.

4. Allow microphone access in Windows 11​

Teams cannot use a microphone that Windows has blocked.

1. Open Start > Settings > Privacy & security > Microphone.
2. Turn on Microphone access.
3. Turn on Let apps access your microphone.
4. If Microsoft Teams appears in the app list, turn it on.
5. Turn on Let desktop apps access your microphone.

The last setting matters for the Teams desktop app and for browsers used with Teams for the web. Desktop apps do not always appear as individually controllable entries in the Windows list.
Close Teams completely after changing these settings:

1. Find the Teams icon in the notification area near the clock.
2. Right-click it and select Quit.
3. Start Teams again and repeat the test call.

For Windows 10, use Start > Settings > Privacy > Microphone, then enable device access, app access, and Allow desktop apps to access your microphone.

5. Check the browser permission if using Teams for the web​

Teams for the web needs permission in both Windows and the browser. Use a current desktop version of Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari on macOS; on Windows, Edge or Chrome are the simplest choices.
In Microsoft Edge:

1. Open the Teams meeting page.
2. Select the lock icon beside the address bar.
3. Open Permissions for this site.
4. Set Microphone to Allow.
5. Refresh the Teams page.
6. When Teams asks which microphone to use, select the intended device.

If you previously selected Block, changing the Windows microphone setting alone will not correct it. You must remove or change the site-specific browser permission.
Also check that Edge has a usable default microphone:

1. Select Settings and more > Settings.
2. Open Cookies and site permissions > Microphone.
3. Ensure websites are allowed to ask for microphone access.
4. Verify the correct input device is selected if Edge presents a device choice.

After changing browser permissions, reload the meeting page and use the pre-join screen to confirm the input device.

6. Correct the meeting audio source and pre-join mute setting​

It is possible to enter a meeting with audio deliberately disabled or with phone or room audio selected. In that situation, the computer microphone will not be active.
Before joining:

1. Open the meeting and select Join.
2. On the pre-join screen, select Computer audio if you want to use the PC microphone.
3. Select the microphone control and make sure it is on.
4. If available, open Audio settings and select the intended microphone.
5. Select Join now.

Teams remembers the pre-join microphone preference, so a previously muted setting can persist into later meetings.
If you deliberately selected Phone audio, Room audio, or Don’t use audio, this is not a microphone fault. Switch back to computer audio from the audio controls if you want Teams to use the PC microphone.

7. Check whether the organizer or your organization has disabled attendee microphones​

A greyed-out or unavailable microphone button can be caused by meeting controls, not by your headset.
In meetings, organizers and presenters can disable attendee microphones. This commonly happens in large meetings, webinars, and tightly managed work or school events. Attendees may see a dimmed microphone control and cannot enable it themselves.
Ask the organizer, co-organizer, or presenter to check:

1. Open the meeting’s Options or meeting controls.
2. Open the Participation settings.
3. Turn on Allow mic for attendees.
4. Apply the change.

If you are the organizer, remember that disabling attendee microphones differs from simply using Mute all. Mute all can silence participants while still allowing them to unmute; disabling attendee microphones prevents attendees from turning their microphones on.
For a work or school account, a Teams administrator can also apply policies that limit audio features. If Teams reports that a setting is managed by your organization, contact your IT administrator rather than attempting registry edits or third-party “privacy repair” tools.

8. Run Windows audio repair, then reinstall the audio driver only if needed​

Use this step when Windows cannot record from the microphone or the device repeatedly disappears.
First, run the built-in input troubleshooter:

1. Open Start > Settings > System > Sound.
2. Scroll to Advanced.
3. Under Troubleshoot common sound problems, select Input devices.
4. Follow the prompts and apply any recommended correction.
5. Restart Teams and repeat the Windows microphone test.

If Windows still does not detect the microphone, reinstall its audio driver.

Warning: Removing an audio driver can temporarily disable sound and microphone access until Windows reinstalls it. Save work and restart the PC when prompted.

1. Right-click Start and select Device Manager.
2. Expand Sound, video and game controllers.
3. Right-click the relevant audio device and select Uninstall device.
4. Select Attempt to remove the driver for this device if that option appears.
5. Select Uninstall.
6. Restart the PC.

Windows should reinstall an appropriate driver during startup. If it does not:

1. Return to Device Manager.
2. Right-click Sound, video and game controllers.
3. Select Scan for hardware changes.
4. Right-click the audio device and select Update driver.

After the restart, return to Settings > System > Sound, select the microphone, and run the recorded-sample test again. Once Windows can record and Teams’ test call plays back correctly, rejoin the Teams meeting and select the same microphone from Settings > Devices.

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References​

1. Primary source: Technobezz
   Published: 2026-07-17T17:45:43.029000+00:00
   
   

   Microsoft Teams Microphone Not Working? 8 Fixes That Work | Technobezz

   Microsoft Teams microphone not working? Fix mute, device, permission, browser, mobile, cache, and meeting policy issues.

   www.technobezz.com
2. Official source: support.microsoft.com
   
   

   Manage audio settings in Microsoft Teams meetings | Microsoft Support

   To change your speaker, microphone, or camera settings in a Teams meeting or a call, go to Device settings.

   support.microsoft.com
3. Official source: learn.microsoft.com
   
   

   White Template

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   learn.microsoft.com