How to Fix “Audio Device Not Found” Error on Windows 11: Step-by-Step Solutions

Experiencing the “Audio Device Not Found” error on your Windows 11 computer can be frustrating, especially when you need sound for work or entertainment. This error means your system is unable to detect the audio hardware required to play sound. Fortunately, there are several straightforward steps you can take to fix this issue.

In this guide, we will walk you through simple and effective solutions to restore your audio. Each step is explained in detail to ensure even beginners can follow along. By the end, your audio should be working properly again.

Let’s start with some quick checks before diving into the troubleshooting process. These initial tips save time and help identify basic causes.

Follow the steps carefully, from easiest to more technical, so you can resolve the problem without unnecessary complications.

Quick Note: Preliminary Checks Before Fixing Audio Device Issues

Check your speakers or headphones: Make sure they are properly connected and powered on.
Verify volume settings: Confirm that your system volume is not muted or set too low.
Restart your computer: Sometimes a simple reboot can resolve hardware detection problems.
Use the correct audio port: Ensure your audio device is plugged into the right jack or USB port.

If these quick steps don’t fix the problem, move on to the detailed solutions below.

Step 1: Run the Windows Audio Troubleshooter

Windows 11 includes a built-in troubleshooter designed to detect and fix common audio problems automatically. Running this tool is the easiest way to start fixing the “Audio Device Not Found” error.

Click the Start menu and select Settings.
Go to System and then click on Troubleshoot.
Select Other troubleshooters.
Find the Playing Audio troubleshooter and click Run.
Follow the on-screen instructions. The troubleshooter will attempt to detect and resolve any audio issues.

This step is important because the troubleshooter can automatically fix configuration errors or missing components without requiring manual changes.

Step 2: Check and Enable Your Audio Device

Sometimes Windows disables your audio device by mistake, or it may be hidden in the settings. You need to check if your device is enabled.

Right-click the Start button and select Device Manager.
Expand the section labeled Sound, video and game controllers.
Look for your audio device in the list. It may be named something like Realtek High Definition Audio or similar.
If you see a downward arrow icon on the device, it means it is disabled. Right-click the device and select Enable device.
If the device is missing entirely, proceed to the next step.

Enabling the device ensures your system can communicate with the audio hardware and is necessary for sound output.

Step 3: Update or Reinstall Audio Drivers

Audio drivers allow your operating system to interact with the audio hardware. Outdated, corrupted, or missing drivers can cause the “Audio Device Not Found” error.

To update your audio drivers:

Open Device Manager again as described earlier.
Right-click your audio device under Sound, video and game controllers.
Select Update driver.
Click Search automatically for updated driver software.
Wait while Windows looks for and installs updates.

If updating doesn’t help, reinstall the driver:

In Device Manager, right-click your audio device and choose Uninstall device.
Confirm any prompts and restart your computer.
Windows will attempt to reinstall the driver automatically upon reboot.

If Windows does not reinstall the driver, you can visit the manufacturer’s website (such as Realtek, Intel, or your PC brand) and download the latest driver manually.

Step 4: Check Windows Audio Services

Windows relies on specific background services to manage audio. If these services are stopped or disabled, sound may not work.

Press Windows + R to open the Run dialog box.
Type services.msc and press Enter.
In the Services window, scroll down and find Windows Audio.
Right-click it and choose Properties.
Make sure the Startup type is set to Automatic.
If the service is not running, click Start.
Click Apply and then OK.

Also check the Windows Audio Endpoint Builder service using the same steps, since it supports audio device detection.

Alternative Method: Use System Restore to Undo Recent Changes

If your audio was working recently but stopped after a system update or software installation, using System Restore can help revert your computer to a previous working state.

Search for Create a restore point in the Start menu and open it.
Click on System Restore.
Choose a restore point dated before the audio problem began.
Follow the instructions to restore your system.

This method can fix issues caused by updates or new software conflicting with drivers or audio settings.

FAQs About “Audio Device Not Found” Error on Windows 11

Why does Windows 11 say “Audio Device Not Found”?

This message appears when Windows cannot detect the audio hardware due to disabled devices, missing or corrupted drivers, hardware problems, or disabled audio services.

Can hardware damage cause this error?

Yes. If your sound card or audio chipset is physically damaged, Windows may not find the device. In such cases, professional repair or replacement might be needed.

Is it safe to download audio drivers from third-party websites?

It’s best to download drivers only from your device manufacturer’s official website or through Windows Update to avoid malware and compatibility issues.

Will updating Windows 11 help fix audio problems?

Sometimes, yes. Microsoft frequently releases updates that fix bugs including audio-related issues, so keeping your system updated is recommended.

What if my audio device disappears again after restarting?

This could indicate a hardware issue or driver conflict. You may need to update BIOS or consult with hardware support.

When Nothing Works: Final Options

If none of the above steps resolve the problem, consider these last-resort options:

Check hardware connections: Try using a different audio device or port to rule out physical damage.
Reset Windows 11: As a last measure, resetting Windows can fix deep system issues. Back up your data before proceeding.
Consult official support: Visit the Microsoft Audio Troubleshooting page for additional help.
Contact hardware manufacturer: If your PC or sound card is under warranty, reach out to the manufacturer for assistance or repairs.

Conclusion

The “Audio Device Not Found” error on Windows 11 can be caused by a variety of simple problems like disabled devices or outdated drivers. By following the step-by-step instructions above, you can systematically diagnose and fix most issues without needing expert help.

Start with basic checks and the Windows troubleshooter, then move on to enabling devices, updating drivers, and verifying audio services. If necessary, use advanced options like System Restore or resetting your PC. Remember, proper hardware connections and official drivers are key for smooth audio performance.

With patience and these clear steps, your audio should be back up and running smoothly in no time.