Here is a little tip that could put your Windows 10 system sound settings back to (near to) how they were if they have gone a little quieter after the November Update.
It took me a little while to find the source of my issue; so, I thought I’d share the solution. I would recommend trying this before uninstalling and reinstalling the Realtek audio drivers (or equivalent).
Here we go:
1 Right mouse click speaker icon on task bar
2 Choose ’Sounds’
3 Choose ‘Playback’
4 Highlight ‘Speakers’, right click and choose ‘Properties’
5 Then pick the ‘Enhancements’ tab
6 Put a check mark (tick) in ‘Loudness Equalisation’
7 Click on OK
8 Click on OK
That’s it; now navigate through your File Explorer folders to see if your sound are back to the previous level.