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Table of Contents
Check volume and default playback devices
Update or rollback audio drivers
Check whether the Windows Audio Service is running
Try running the audio troubleshooter
Home System Tutorial Windows Series Fixing Windows 11 sound output suddenly stopping

Fixing Windows 11 sound output suddenly stopping

Jul 21, 2025 am 12:39 AM

The solution to the sudden stop of Windows 11 audio output is as follows: 1. Check the volume and default playback device, confirm that it is not muted and select the correct output device; 2. Update or roll back the audio driver, and try to manually install the latest driver; 3. Make sure that the Windows Audio Service and Windows Audio Endpoint Builder service are running; 4. Troubleshoot the audio troubleshooting tool that runs the system. 5. If it is still not solved, try restarting the computer to restore the audio function.

Fixing Windows 11 sound output suddenly stopping

The audio output of Windows 11 suddenly stopped, which is really annoying. The problem may be with drivers, system settings, or background program conflicts. Don't rush to restart, check a few key points first.

Fixing Windows 11 sound output suddenly stopping

Check volume and default playback devices

Sometimes the sound is gone, but it is actually just muted, or the default device switches wrong.

  • Click the volume icon in the lower right corner of the taskbar to confirm that it is not muted and turn the volume to the appropriate position.
  • Right-click the volume icon > "Open Sound Settings" > Confirm that the currently selected device is correct in "Select your output device"
  • If there are multiple devices (such as headphones, speakers, HDMI), try switching to see if there is any sound

If everything is OK but still no sound, try unplugging the headphones/speaker, and the system sometimes re-identifies the device and returns to normal.

Fixing Windows 11 sound output suddenly stopping

Update or rollback audio drivers

One of the most common reasons for sound problems is that there is a problem with the sound card driver, especially an exception after an update.

  • Press Win X and select Device Manager
  • Expand "Sound, Video, and Game Controllers"
  • Right-click your audio device (such as Realtek High Definition Audio) > Select "Update Driver"
  • If there is a problem after the driver has been updated recently, you can select "Properties" > "Driver" tab > "Rolling back drivers"

If the update is invalid, you can also download the latest driver and install it manually on the motherboard/laptop official website.

Fixing Windows 11 sound output suddenly stopping

Check whether the Windows Audio Service is running

Sometimes the system service is shut down, which can also cause the sound to fail.

  • Press Win R to enter services.msc to enter
  • Find the "Windows Audio" service
  • Check whether the status is "Running". If not, right-click and select "Start"
  • Also make sure its startup type is "automatic"

You can also check whether the "Windows Audio Endpoint Builder" service is also running normally.


Try running the audio troubleshooter

Windows's own troubleshooting tool can automatically detect some common problems.

  • Open Settings > System > Sound
  • Scroll down to find the "Advanced Sound Settings" section > Click "Troubleshooting"
  • Follow the prompts to run step by step, and the system will try to fix the problems found

Although this tool cannot solve all problems, it is worth a try, especially for users who are not very familiar with manual operations.


Basically these commonly used methods. In most cases, you can do it by starting from these aspects. If it is not complicated, it is easy to ignore: Sometimes it also needs to restart after updating the system patch to restore the audio, so don't forget to try shutting down and booting it up.

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