Fix Video Sound Not Working on Windows

When video sound stops working on Windows, it usually means the audio is being sent to the wrong output device, the volume is muted, or a driver is out of date. This guide walks through the most common fixes, from quick checks to driver updates, so you can get sound back in minutes.

What You’ll Need

Administrator access to your Windows PC (to update drivers and change system settings)
Your audio device (speakers, headphones, or earbuds) connected and powered on
Internet connection (for automatic driver updates)

Step-by-Step

Check the basics first. Make sure your speakers or headphones are plugged in properly and turned on. Look for a physical mute button or volume knob on your device. If using Bluetooth, confirm the device is paired and connected.
Check Windows volume and mute settings. Click the speaker icon in the system tray (bottom-right corner). Make sure the volume slider is not at zero and the mute icon is not showing a red slash. If it is, click it to unmute.
Check the volume mixer. Right-click the speaker icon and select Open Volume Mixer. Look at the slider for the video player app (like Chrome, VLC, or Movies & TV). If it is low or muted, adjust it. Also check the system slider.
Restart the video player. Close the app playing the video completely and reopen it. Sometimes the app gets stuck in a muted state or loses its audio session.
Test with a different video or app. Play a different video on YouTube or a local file. If sound works there, the problem is with the original file or website, not Windows.
Run the Windows audio troubleshooter. Go to Settings > System > Sound > Troubleshoot (or Sound problems). Windows will scan for issues and may automatically fix them or suggest changes.
Set the correct default output device. In Settings > System > Sound, under Output, select the device you are actually using (e.g., Speakers, Headphones, or a specific Bluetooth device). If you have multiple devices, try switching to another one and back.
Restart Windows Audio service. Press Win + R, type services.msc, and press Enter. Find Windows Audio in the list, right-click it, and choose Restart. Do the same for Windows Audio Endpoint Builder.
Update audio drivers. Right-click the Start button and select Device Manager. Expand Sound, video and game controllers. Right-click your audio device (usually Realtek, Intel, or AMD) and select Update driver. Choose Search automatically for drivers. If Windows finds no update, visit your PC or motherboard manufacturer’s website for the latest driver.
Reinstall audio drivers. In Device Manager, right-click your audio device and select Uninstall device. Check the box that says Delete the driver software for this device if it appears, then click Uninstall. Restart your PC – Windows will reinstall the driver automatically.
Check app-specific sound settings. Some apps (like browsers) have their own mute options. In Chrome, right-click the tab and see if Unmute site appears. In VLC, go to Tools > Preferences > Audio and ensure the output module is set to Windows DirectSound or WASAPI.
Disable audio enhancements. In Settings > System > Sound, click your output device, then under Enhancements (or Audio enhancements), turn them off. Some enhancements can cause conflicts.
Run the video in a different player. If the video is a file, try opening it with another player like VLC Media Player or Windows Media Player. If sound works there, the original player is the issue.

Common Mistakes

Forgetting to check the volume mixer. The system volume may be fine, but the specific app (like Chrome) could be muted. Always check the mixer.
Assuming the wrong output device. If you have both speakers and headphones plugged in, Windows might be sending audio to the one you are not using. Always verify the default output.
Skipping the restart. A simple restart of the app or the PC often fixes temporary glitches, but many users try complex fixes first.
Updating the wrong driver. In Device Manager, make sure you update the device under Sound, video and game controllers, not the monitor or USB drivers.
Not checking the video file itself. Some video files have no audio track, or the audio codec is missing. Test with a known-good video.

Tips

Keep your Windows and drivers updated by enabling automatic updates in Settings > Windows Update.
If you use Bluetooth headphones, disconnect and reconnect them if sound stops. Also, check the battery level – low battery can cause audio issues.
Use the Sound control panel (run mmsys.cpl) for more advanced settings like disabling all enhancements at once.
For built-in laptop speakers, make sure the laptop is not in airplane mode or that the function key for mute (often F1-F12 with a speaker icon) is not pressed.
If you recently installed new software, try System Restore to a point before the issue started.

Troubleshooting

If the steps above do not fix the problem, try the following:

Check if sound works outside of videos. Play a system sound (like the Windows notification) or music from a music app. If no sound at all, the issue is broader – try the steps again, especially the audio service restart and driver update.
Try a different user account. Create a new local user account and test sound there. If it works, your main account’s settings are corrupted – consider resetting the Sound settings or creating a new account.
Check for third-party audio software. Some audio managers (like Realtek Audio Console, Dolby, or Nahimic) can override Windows settings. Open them and check if they have a mute or output routing option.
Inspect the physical connection. Try a different port or cable. If using a USB headset, try a different USB port.
Use the hardware troubleshooter. In Settings > System > Troubleshoot > Other troubleshooters, run the Playing Audio troubleshooter.
If all else fails, reset Windows Audio settings. Open Settings > System > Sound and click Reset under Advanced sound options (if available). This resets all app volume and device preferences.

Frequently Asked Questions

Why is my video muted but the sound works in other apps?

This is usually because the specific app (like a browser) is muted in the Volume Mixer. Open the mixer and raise the slider for that app. Also check if the app itself has a mute button (e.g., a speaker icon in the browser tab).

How do I fix sound when playing videos from a specific website?

First, check if the site has its own volume control. Then, clear the browser cache and cookies, or try a different browser. Also, ensure the site is not blocked from playing audio by your browser’s site settings.

What should I do if the audio driver update doesn’t fix the issue?

Uninstall the driver completely and restart your PC – Windows will reinstall the generic driver. If that doesn’t work, download the latest driver from your PC manufacturer’s website (not the component maker) and install it manually.

Can a Windows update cause video sound to stop working?

Yes, occasionally a Windows update can break audio drivers. If the problem started after an update, try rolling back the driver in Device Manager (right-click device > Properties > Driver > Roll Back Driver) or uninstall the update from Settings > Windows Update > Update history.

Why does sound work on headphones but not on speakers (or vice versa)?

This usually means the default output device is set to the wrong one. Go to Sound settings and select your speakers as the default. Also check that the speakers are powered on and not muted.

Is there a way to test if my audio hardware is working?

Yes, in Settings > System > Sound, under Output, click your device and select Test – Windows will play a chime. If you hear it, the hardware and drivers are fine; the issue is with the video or app.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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