If you’re experiencing mic issues on Microsoft Teams after installing the 24H2 update of Windows 11, you’re not the only one. Based on support cases from enterprise deployments and user reports in early 2025, the Teams microphone not working issue is particularly common after this update. It typically affects both external USB mics and built-in laptop microphones.

In this guide, we’ll guide you through the real, tested solutions that IT admins and repair professionals use to solve Teams microphone issues after 24H2. Whether you’re on a Lenovo ThinkPad, Dell XPS, or Surface device, this guide covers fixes that apply across the board.

Why Does the Mic Issue Happen in Teams After the 24H2 Update?

The 24H2 update introduced several under-the-hood changes to audio drivers, USB device management, and permission handling. Microsoft also updated the Windows Audio Device Graph Isolation behavior and enhanced privacy restrictions for apps like Teams.

That’s why many users are reporting microphone not working in Teams even though it works perfectly in Zoom, Skype, or Windows voice recorder.

• Microsoft Teams lost access to the microphone due to permission resets
• Audio drivers were automatically updated or replaced
• App settings were wiped or reverted
• USB or Bluetooth microphone input is no longer prioritized by default
• Teams is running in the background with a stale audio session
• Enhanced audio isolation mode interfering with legacy devices.

Fix Mic Issues on Microsoft Teams After the 24H2 Update of Windows 11

If your microphone stopped working in Microsoft Teams after updating to Windows 11 version 24H2, you’re not alone. This issue has been widely reported in early 2025, especially among users who rely on Teams for remote work, webinars, or enterprise calls.

Re-Enable Microphone Permissions in Windows 11 (24H2)

After the 24H2 update, Windows often resets privacy permissions for desktop apps like Microsoft Teams. This results in Teams not being able to detect or access your microphone even though it’s physically working.

• Press Windows + I to open the Settings panel.
• Navigate to Privacy & Security > Microphone.
• Ensure the Microphone access toggle is turned ON.
• Under Let desktop apps access your microphone, make sure Microsoft Teams is listed and enabled.
• If Teams is missing from the list, launch the app once and return to this screen to check again.

Why this works: Teams needs explicit permission from the OS to access input devices. This often gets revoked after large updates like 24H2.

Set the Correct Default Input Device in Sound Settings

After the update, Windows may switch your default microphone to a disabled or virtual device. This leads to the common “mic issue in Teams” scenario, especially for users with multiple audio devices.

1. Right-click the sound icon in your taskbar.
2. Click Sound Settings.
3. Scroll to the Input section.
4. From the dropdown menu, choose your actual microphone (e.g., “Realtek Audio”, “Blue Yeti USB”, or “Logitech USB Mic”).
5. Click Device Properties, then select Advanced.
6. Uncheck the option: Allow applications to take exclusive control of this device.
7. Click Apply and close the settings.

Why this works: Teams will always use the system’s default input unless configured otherwise. Resetting this prevents Teams from grabbing the wrong mic.

Restart Core Windows Audio Services

Teams microphone not working problems can stem from inactive or corrupted audio services after a major system update. Restarting these services refreshes the audio session.

1. Press Windows + R, type services.msc, and press Enter.
2. Locate and restart the following services:

• Windows Audio
• Windows Audio Endpoint Builder
• Remote Procedure Call (RPC)

To restart, right-click each service and select Restart.

Why this works: These services are responsible for routing microphone input to applications like Teams. Restarting them can restore functionality.

Run the Windows Microphone Troubleshooter

This built-in tool in Windows 11 is updated with every feature release. In version 24H2, it includes Teams-related diagnostic improvements.

1. Open Settings > System > Troubleshoot.
2. Click on Other troubleshooters.
3. Scroll to Recording Audio and click Run.
4. Follow on-screen instructions. It will check for:

• Disabled or muted mic
• Driver conflicts
• Hardware problems

Why this helps: The troubleshooter now checks for Teams-specific mic errors, especially when microphone is not working in tea (Teams).

Update or Roll Back Microphone Drivers

Windows 11 24H2 often auto-installs newer Realtek, Intel, or OEM-provided drivers, which sometimes break compatibility with Teams.

To Update:

• Press Windows + X > Select Device Manager.
• Expand Audio inputs and outputs.
• Right-click your microphone > Select Update driver > Choose Search automatically.

To Roll Back:

• In Device Manager, right-click the microphone again.
• Choose Properties > Driver tab.
• If the Roll Back Driver button is active, click it.

If it’s grayed out, use the Uninstall Driver option, then reboot to let Windows reinstall the default working version.

Why this works: Newer drivers may conflict with Microsoft Teams, causing the mic to malfunction. Rolling back often fixes this issue.

Disable All Audio Enhancements

Enhancements like noise suppression or acoustic echo cancellation may interfere with Teams’ own processing pipeline.

1. Open Control Panel > Sound.
2. Click the Recording tab.
3. Right-click your microphone > Select Properties.
4. Go to the Enhancements tab.
5. Check the box for Disable all enhancements.
6. Apply and exit.

Why this works: Microsoft Teams has its own DSP (Digital Signal Processing). External enhancements can conflict with this, especially post-24H2.

Manually Configure Teams Input Device

In 2025, Microsoft updated the Teams UI for better hardware support. But if Teams defaults to the wrong device, your mic may still not work even when system settings are correct.

1. Launch Microsoft Teams.
2. Click your profile icon > Go to Settings.
3. Navigate to Devices.
4. Under Microphone, select your preferred input device.
5. Use the Make a Test Call button to verify.

What to Check:

• Ensure mic bars move while speaking.
• Confirm you can hear playback in the test call.
• If bars don’t move, Teams isn’t detecting input.

Repair Microsoft Teams via System Settings

Instead of reinstalling Teams, try repairing it using Windows’ built-in repair utility for Microsoft Store and enterprise apps.

1. Go to Settings > Apps > Installed apps.
2. Find Microsoft Teams (work or school).
3. Click the three-dot menu > Select Advanced Options.
4. Scroll down and click Repair.

Why this helps: This resets the app without deleting data. It clears corrupted cache or background processes blocking microphone access.

Use Teams Web App to Isolate the Problem

This method helps determine whether the issue is app-specific or system-wide.

1. Open Microsoft Teams in a browser at https://teams.microsoft.com.
2. Sign in and join or start a meeting.
3. Allow browser mic permissions when prompted.
4. Test your microphone.

If it works here but not in the app: The issue lies with the desktop client. You can use the web version temporarily or clean-install the app.

Uninstall Problematic Third-Party Audio Tools

Apps like NVIDIA Broadcast, Voicemeeter, Elgato Wave Link, and OBS virtual cables often hijack default microphone channels. This causes conflicts in Teams.

• Quit all third-party audio tools.
• Go to Sound Settings and reset input device.
• Restart your PC and launch only Teams.
• Check if Teams microphone issues persist.

Advanced Fix: If you must use Voicemeeter or similar, ensure you assign exclusive WDM input paths and confirm routing matches Teams settings.

Create a New User Profile in Windows 11 (Advanced)

If all else fails, the issue may stem from corrupted user profile settings.

1. Open Settings > Accounts > Other Users.
2. Click Add account > Choose Local account.
3. Create a new user profile and make it an administrator.
4. Sign into the new account and test Microsoft Teams.

Why this works: In some cases, Teams microphone not working errors are caused by profile-level registry corruption post-update.

Clean Reinstall Microsoft Teams

This is your final resort if all else fails.

• Press Windows + R, type %appdata%\Microsoft\Teams, and delete the entire folder.
• Go to Settings > Apps > Installed Apps.
• Uninstall Microsoft Teams.
• Reboot your PC.
• Download the latest Teams version from Microsoft and reinstall.

Why this helps: It wipes all remnants of Teams, including corrupt caches and broken device configurations that survived the 24H2 update.

Frequently Asked Questions (FAQs)

1. Why is my microphone not working in Microsoft Teams after the 24H2 update?

The 24H2 update to Windows 11 resets app permissions, updates audio drivers, and modifies device recognition. These changes can cause Microsoft Teams to lose access to your mic or default to the wrong input device.

2. How do I check if Microsoft Teams is using the correct microphone?

Open Teams > Settings > Devices. Under Microphone, select your preferred mic from the list. Use the Make a Test Call feature to confirm input is working.

3. Should I uninstall and reinstall Microsoft Teams to fix the mic issue?

Not immediately. First try repairing the app via Settings > Apps > Installed Apps > Advanced Options > Repair. Reinstall only if all other methods fail.

4. Is this issue specific to USB microphones or also affects built-in mics?

Both are affected. Users have reported problems with internal laptop microphones as well as external USB, Bluetooth, and XLR interfaces after the 24H2 update.

5. What should I do if Teams mic works in the browser but not the desktop app?

This indicates a configuration or cache issue in the desktop client. Use the browser version temporarily, then either repair or clean reinstall the desktop app.

Conclusion

Mic issues in Microsoft Teams after the Windows 11 24H2 update can be frustrating—but they’re usually fixable. By methodically checking your privacy settings, drivers, Teams device configuration, and system services, you can restore full mic functionality without needing complex tools or external support. Stick to the verified steps above and test after each one. If all else fails, a clean reinstall or new user profile will resolve even the rarest cases.

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