How to adjust Bass and Treble in Windows 11?

You are preaching to the choir! Most of us would agree with you 110%. It's like they are purposing trying to alienate long time users and are succeeding. Strangest company ever.

Why does everyone assume that people want to boost the treble ? The treble is way too loud compared to the bass. I want to lower the treble for the output to the computer speaker ( and headphones ). HAHAHA !!!

I gave up looking in Windows and turned to the world wide web. Found a terrific, free, app called "FxSound" that installed painlessly and lets me adjust multiple bands easily. Fergetabout Microsoft, they aren't listening (<-- see what I did there?).

Thank you!

Both of you don't say enough information that matters to give you advice.

Go through the following:

1. I have Realtek Audio Console app (SouthBay has a HP computer so he has HP audio app or B&O audio app) and it has an EQ --- then use that EQ, no need to download FX sound.
2. I have Realtek Audio Console app and it doesn't have EQ, but in addition to the Realtek Audio Console app, my computer also has Creative Soundblaster Cinema app and that has an EQ --- then use that EQ and no need to download FX sound.
3. I have Realtek Audio Console app and it doesn't have EQ. I also have DTS app but it doesn't have an EQ. The DTS app has a bunch of smart pre-sets and they work ok enough. I don't have to download FX sound. And for SouthBay, if these smart pre-sets are good enough then he can uninstall his FX sound app.
4. I have Realtek Audio Console app and it doesn't have EQ I also have DTS app but it also doesn't have EQ. I don't like the DTS smart pre-set EQ's. Then go and download FX sound or Equalizer APO.

FxSound