Solution to "No audio output device is installed" windows 10

"No audio output device is installed" in Windows 10 is a common error after migrating to Windows 10 or after installing Windows Update. There are few reason why Windows does not detect your audio and the most common reason is the audio services is stopping. Below I listed solutions that could help you to get your audio back.

1. No audio after October updates.

If you have this problem after windows updates especially October updates, here is the solution.

• Open device manager and double click on system device.
• Look for Intel® Smart Sound Technology. (SST)

• Right click and select update Driver.
• Then Select browse my computer for driver software.
• Then select Let me pick form a list of available driver form my computer.
• Finally, select high definition audio driver from the list.

• Restart after installation finish.

2. Check if the audio driver are listed in system devices.

Sometimes wrong driver installed and your audio is recognize as system device instead of Audio controller.

• Open device manager and double click on system device.
• Now look for High definition Audio driver, if you find it there then install High definition Audio driver using the same step in method 1 above.

3. Make sure the audio device is enabled.

Right click on the speaker icon on the lower left corner and select troubleshoot. If a recommended action displays, select Apply this fix, and then test for sound.

4. Uninstall and re-install current audio driver.

• Current audio driver could be the reason why your audio is not working. Reinstalling the driver could help to fix the issue.
• Go to device manager (right click on Windows icon and select Device Manager).
• Look for sound, video and game controllers.
• Right click on it and select uninstall.

• Restart and again go to device manager, right click on audio device and select update driver.
• Follow on screen instruction until audio installation finish.

5. Restart Audio Service.

• First, open "services" (open search and type services).
• Look for "Windows Audio" :See picture below

• Right click on it and select restart. Then restart you computer and test for sound.

6. Install generic Audio Driver.

• Open device manager and right click your current audio device. 
• Select update driver.
• Select browse my computer > Select let me pick form a list > then select "High Definition Audio Device" form the list.

7. Factory reset without losing data.

This method only if you have audio problem after Windows updates. Run factory reset but keep all your files.

• Open Start > Settings > Update & Security to begin, selecting Recovery in the left-hand menu. Under Reset this PC, click or tap Get Started, and use the Keep my files option.

This solution works especially if you are using Realtek Audio device and you have three unassign driver with code 52.