Fix Windows 10 Upgrade Internal Microphone Not Working

If your internal microphone stops working right after a Windows 10 upgrade, the fix is almost always a driver or privacy setting issue, not a hardware failure. Start by checking the microphone privacy settings and rolling back or reinstalling the audio driver; these two steps resolve the majority of cases. Below is a full troubleshooting guide with exact menu paths, likely causes, and what to do if the first fix doesn’t work.

Why Upgrades Break the Internal Microphone

Windows 10 feature updates (like the 22H2 update) and even small cumulative updates can reset or overwrite audio drivers, change default recording devices, or flip privacy toggles. The internal microphone is especially vulnerable because it depends on a specific driver stack (usually from Realtek, Synaptics, or Intel) that the upgrade may replace with a generic Microsoft driver. Generic drivers often lack the proper signal processing for the built-in mic array, resulting in no sound or very low volume.

Another common trigger: the upgrade creates a new user profile or migrates settings incorrectly, so the microphone permission for desktop apps gets disabled even though it was allowed before. Windows 10 also has a “Let apps access your microphone” master switch that can be turned off during the upgrade’s privacy reset.

Step 1: Check Microphone Privacy Settings

This is the fastest fix and the most frequently overlooked. After an upgrade, Windows may have reset these toggles:

1. Open Settings (Win + I) > Privacy & security > Microphone (in older builds it’s under Privacy > Microphone).
2. Ensure Microphone access is On.
3. Ensure Let apps access your microphone is On.
4. Scroll down to Let desktop apps access your microphone and turn it On. This is the one that usually gets disabled after an upgrade and blocks apps like Zoom, Discord, or even the built-in Voice Recorder.
5. If you use a specific app, also check that it appears in the list below with its own toggle On.

After changing these, restart the app that needs the mic, not just the whole system. Many users find that the mic works in the Settings test but not in a specific app—that’s almost always a per-app permission issue.

Step 2: Roll Back or Reinstall the Audio Driver

If privacy settings are fine, the driver is the next suspect. Windows 10 keeps the previous driver for up to 10 days after an upgrade, so you can quickly roll back:

1. Right-click the Start button and select Device Manager.
2. Expand Audio inputs and outputs and find your internal microphone (often named “Microphone Array” or “Internal Microphone”).
3. Right-click it and select Properties > Driver tab.
4. Click Roll Back Driver if the button is enabled. If it’s greyed out, skip to the reinstall step.
5. If rollback isn’t available, right-click the device and select Uninstall device. Check the box “Delete the driver software for this device” if it appears, then click Uninstall.
6. Restart your PC. Windows will automatically reinstall the driver on boot.

If Windows reinstalls the same broken driver, visit your laptop manufacturer’s support site and download the latest audio driver for your exact model. Do not use a generic “Realtek HD Audio” driver from a third-party site—that often makes things worse. After installing, restart again.

Step 3: Set the Internal Mic as Default Device

Upgrades can change the default recording device—for example, to a USB headset or a monitor’s mic that isn’t actually connected. To check:

1. Right-click the speaker icon in the system tray and select Sound settings.
2. Under Input, look at the device shown. Click the drop-down and select your internal microphone if it’s not already selected.
3. Click Properties and then Additional device properties (a small link at the bottom).
4. Go to the Advanced tab and uncheck “Allow applications to take exclusive control of this device”—this prevents a conflicting app from hogging the mic.

Also test the mic in the same Sound settings page. If the blue bar moves when you speak, the hardware is fine and the issue is app-specific.

Step 4: Run the Built-In Troubleshooter

Windows 10 has a dedicated audio troubleshooter that can automatically detect and fix common issues:

1. Open Settings > System > Sound > Troubleshoot (or search “audio troubleshooter” in the Start menu).
2. Select Recording Audio and run the troubleshooter.
3. Follow the prompts. It may ask you to choose the problematic device, then it will try to reset settings or update drivers.

This tool isn’t perfect, but it catches simple misconfigurations like a disabled device or a muted mic. If it says “no problems found,” move to the next step.

Step 5: Disable Audio Enhancements

Audio enhancements (like noise suppression or acoustic echo cancellation) can conflict with the new driver after an upgrade. To disable them:

1. Open Sound settings > Input > Properties (as in Step 3).
2. Go to the Enhancements tab.
3. Check Disable all enhancements.
4. Click OK and test the mic.

If the Enhancements tab isn’t there, your driver doesn’t support it—skip this step. Some laptops also have a separate audio console (like Realtek Audio Console) that has its own enhancement settings; open that and disable any “Beamforming” or “Noise Reduction” options temporarily.

When It’s Not the Driver: Hardware and BIOS

If all software fixes fail, consider two less common causes:

• BIOS/UEFI settings: Some laptops have a setting that disables the internal mic or the audio controller. Restart, press the key to enter BIOS (usually F2, F10, or Del), and look under “Advanced” or “Onboard Devices” for an audio or microphone option. Ensure it’s enabled.
• Hardware failure: The upgrade itself doesn’t cause hardware failure, but it can expose a mic that was already failing. Test with a USB headset or external mic. If that works, the internal mic hardware may be dead—especially if the laptop is older or has been physically damaged.

Also check if the mic works in Windows’ built-in Voice Recorder app. If it does, the problem is with a specific app’s settings, not Windows. If it doesn’t work anywhere, the driver or hardware is the issue.

Frequently Asked Questions

Why did my mic work before the upgrade but not after?

Windows 10 upgrades replace the audio driver with a generic one that may not support your specific internal mic array. The upgrade can also reset privacy permissions and default device settings. All three are reversible with the steps above.

How do I know if it’s a driver problem or a hardware problem?

Test the mic in the Sound settings input bar. If the bar moves, the hardware is fine. If it doesn’t, plug in an external USB mic and test again—if that works, the internal mic hardware or its specific driver is the problem.

Will rolling back the driver remove other Windows updates?

No. Rolling back a driver only removes that specific driver update. It does not affect Windows feature updates or security patches. The rollback option is available only for a limited time after the upgrade, usually 10 days.

My mic is detected but sounds very quiet or muffled after the upgrade.

This is often a driver enhancement issue. Disable all audio enhancements, and check the microphone’s level in Sound settings > Input > Properties > Levels. Increase the level to 100 and boost to +20 dB if available. Also try disabling “Acoustic Echo Cancellation” in the driver console.

Do I need to reinstall Windows to fix this?

Almost never. The fixes above resolve the vast majority of cases. Reinstalling Windows is a last resort and should only be done after trying all driver and privacy steps, and after confirming the mic works with a live Linux USB or another OS.

Can a Windows update break the microphone permanently?

No. Software updates cannot permanently damage hardware. If the mic doesn’t work after all software fixes, the hardware has failed independently, or the connector is loose—which requires physical repair.

Related

• How to Open Run in Windows 10: 8 Ways
• Fix Snapchat Can’t Loading Images: 7 Fixes
• Roku Freezing or Restarting? Fixes That Work