My device:
Lenovo G500
Ever since I've upgraded to windows 10, this has happened a ton of times.
Sound output turns shittier, whether I'm using the laptop speakers (inbuilt), headphones or external speakers.
The audio remains functional but sound quality turns horrible & unbearable to hear.
I uninstalled the audio driver (conexant HD) & reinstall it (using the driver disc that came with laptop; windows 8 then).
& the problem gets solved.
Audio quality is back to good.
But, this keeps happening again & again.
I have uninstall & reinstall driver every 2 weeks.
AND yesterday, a windows update got installed & audio got corrupted simultaneously. Now it's not getting corrected by uninstalling & reinstalling.
I need help understanding this problem & solving this permanently.