Laptop Microphone Not Working in Microsoft Teams

When others cannot hear you in Microsoft Teams, the cause is usually one of a few layers: a muted or disconnected microphone, a missing operating-system permission, a browser permission if you use Teams on the web, or the wrong input device selected inside Teams. This guide moves through those layers in order so you can find where the sound stops, using reversible steps only.

Identify the symptom and environment

Before changing anything, note exactly what happens. A precise description narrows the cause faster than trying fixes at random.

• Which Teams you use: the desktop app (new or classic Teams) or Teams in a web browser.
• Your operating system and its version, for example Windows 10, Windows 11 or macOS.
• Whether the problem affects every call, only meetings, or only calls after the laptop wakes from sleep.
• Whether people hear nothing at all, hear you very quietly, or hear you cutting in and out.
• Whether a headset, dock or Bluetooth device is connected or was connected recently.
• Whether the problem started after an update to Teams, the operating system or a driver.

Isolate where the fault occurs

Work from the hardware outward to Teams. The goal is to find the first point at which your voice stops registering.

• Hardware: many laptops have a microphone mute key or a function-key combination, sometimes with an indicator light. Check it is not active.
• Connection: a plugged-in headset or a paired Bluetooth device can take over as the active input device, so the built-in microphone is no longer used.
• Operating system: open the system sound settings and speak. If the input level meter for the built-in microphone does not move, the problem sits below Teams.
• Permissions: if the meter moves in system settings but Teams shows no input, the operating system or browser may be blocking Teams from the microphone.
• Teams selection: if permissions are granted, Teams may be set to a different microphone than the one you are speaking into.

A second app helps only when you need to separate a system-wide fault from a Teams-specific one. If the built-in microphone records normally in another app, focus on Teams settings and permissions. If it fails everywhere, focus on the hardware, mute state and system sound settings.

Try reversible fixes in order

1. Check mute states

Confirm the microphone button in the Teams call controls is not muted. In some meetings the organizer can turn off microphones for attendees; in that case the mic button is unavailable until the organizer allows it. Also check the laptop's hardware mute key and any mute switch on a connected headset.

2. Select the right microphone in Teams

Open Settings in Teams, usually reached through the menu next to your profile picture, then go to Devices. Choose your laptop's built-in microphone in the Microphone list rather than a headset, dock or virtual device, and confirm the speaker or output device is also the one you expect. Labels can vary between new Teams, classic Teams and Teams on the web. During a call you can usually reach the same device options from the More menu in the meeting controls. Speak and watch for the input level indicator to respond.

3. Allow microphone access on Windows

On Windows 11, open Settings, then Privacy and security, then Microphone. On Windows 10, open Settings, then Privacy, then Microphone. Make sure microphone access is on, that apps are allowed to use the microphone, and that Teams is allowed. Depending on the Teams version, it may appear in the list of individual apps or be covered by the option for desktop apps. Restart Teams after changing these settings.

4. Allow microphone access on macOS

On recent macOS versions, open System Settings, then Privacy and Security, then Microphone. On older versions, the equivalent is System Preferences, then Security and Privacy, then the Privacy tab, then Microphone. Turn on access for Microsoft Teams. macOS may ask you to quit and reopen Teams before the change takes effect.

5. Allow microphone access in the browser

If you use Teams on the web, open the site information icon at the left of the address bar and set the microphone permission to allow, then reload the page. The browser itself also needs microphone permission from the operating system, using the same privacy settings described above but applied to the browser instead of Teams.

6. Check the system input device and level

In the system sound settings, set the built-in microphone as the input device and make sure its input volume is not at zero. Speak and watch the input level meter. If it moves here but not in Teams, return to the Teams device selection and permission steps.

7. Free the microphone from other apps

Close other apps that may be using the microphone, such as other calling, recording or voice-assistant tools, then restart Teams. On Windows, the microphone's advanced properties in the classic Sound control panel include an option that lets apps take exclusive control of the device; turning it off is reversible and can help when another app is holding the microphone.

8. Review noise suppression

If people hear you faintly or in fragments rather than not at all, look for a noise suppression option in the Teams device settings, if your version offers it. Aggressive suppression can treat a quiet voice as background noise. Try a different level, test, and change it back if it makes no difference.

9. Restart and update through normal channels

Fully quit Teams and restart the laptop, which clears devices that stopped responding after sleep or a dock change. Install pending updates for Teams and the operating system through their usual update mechanisms. For audio drivers, use Windows Update or your laptop manufacturer's own support tools rather than drivers from unknown sources.

Confirm the result

Check the original symptom directly rather than assuming a setting change fixed it. In Teams device settings, speak and confirm the input level indicator responds. If your version includes a test call option in Devices, make a test call and listen to the playback. Then join a real call or meeting and ask someone to confirm they hear you clearly. If the problem used to appear only after sleep or after connecting a headset, repeat that situation once and check again.

If the problem remains

Keep a short record of what you observed: your operating system and version, which Teams you use, whether the system input meter moves for the built-in microphone, whether it works in another app, whether an external microphone works in Teams, and when the problem started. This information makes support conversations much shorter.

On a work or school laptop, contact your IT administrator, because organization policies can control microphone access, Teams meeting settings and driver updates. If the built-in microphone shows no input in any app or in the system sound settings while an external microphone works, contact the laptop manufacturer's support. That pattern points toward the built-in microphone or its connection, but it is not proof of failed hardware; support can run diagnostics before any repair is decided.