Computer is mute (No Audio output device is installed)

[AhmedTButt]

I have just bought HP Pavilion All-in-One - 27-d0013na 2 days ago. Everything worked like a charm on day 1 but when i started my PC today, the speaker icon on the bottom right has a red X on it and the audio will not work. I ran the troubleshooter and it recommended restarting. I have tried restarting a number of times and even tried plugging in my headphones to no avail. 

I installed the realtek HD audio driver via HP support assistant. Perhaps that update caused a problem. 

Please advise.

Thanks!

[KrazyToad]

@AhmedTButt

Welcome to HP Community

I have gone through your Post and would like to help

Try reinstalling the Audio Driver from Device Manager

- Select the Start  button, type Device Manager, and select it from the list of results.
- Look for Audio Input & Output Adapters and expand the List
- Look for Audio driver then right-click it, and select Update Driver.
- Select Search automatically for updated driver software.
- If these steps don't work, try reinstalling the driver: Open Device Manager, right-click the Audio driver and select Uninstall. Restart your PC and Windows will attempt to reinstall the driver.

Also ensure the Computer has the latest BIOS. Link: https://support.hp.com/us-en/drivers

Keep me posted

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.