Hi, How are you? I am Alan, Microsoft Expert, an Independent Advisor. I will be happy to assist you today. I appreciate your contact!
First, run the Playing audio troubleshoot - open Start > Settings > Update & security > Troubleshoot
Scroll down, select Playing audio
Click Run the troubleshooter
When complete, restart your computer then check if audio is working again.
Press Windows key + X
Click Device Manager
Expand Sound, video and game controllers
Right click your audio adapter
Click Properties
Click the Driver tab
Is there an option rollback?
If so, click it.
Also, check to make sure the audio driver is fully updated. This is often the problem when you upgrade to a new version of Windows 10. Sometimes reinstalling the latest available driver from the manufacturers website helps.
Open Start, type: change sound card
Select the Playback
Right click your headphone
Click Set as Default Device if it isn't already
Select your speakers
Click Properties
Click the Levels tab
Use the slider to adjust level
Other things you can try:
1. Play a youtube video with the soundcard speaker jack unplugged and let it play through the laptop's inbuilt speakers.
2. While it is playing, plug in the audio jack and see if it starts playing.
Best,
Alan
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