how do i change the bass volume

Windows does not provide bass/treble adjustment steps in the provided guidance, but these supported checks can help reduce overly bass-heavy sound:

1. Check app and system volume separately in Volume mixer.
   • Right-click the Volume icon in the taskbar.
   • Select Open Volume mixer.
   • Make sure the system and the app being used are not set in a way that makes playback seem unbalanced.
2. Turn off audio enhancements.
   • Right-click the Volume icon and select Sounds.
   • Open the Playback tab.
   • Select the audio device, then Properties.
   • Open the Enhancements tab.
   • Check Disable all enhancements, then select OK.
     This can help if an enhancement is making bass too strong.
3. Try a different audio format.
   • Right-click the Volume icon and select Sounds.
   • Open the Playback tab.
   • Select the audio device, then Properties.
   • Open the Advanced tab.
   • Under Default format, choose a different format and test audio.
4. Update or reinstall the audio driver.
   • Open Device Manager from Start search.
   • Expand Sound, video and game controllers.
   • Right-click the audio device and select Update driver.
   • Restart the PC.
   • If needed, uninstall the driver and reinstall it from the device manufacturer’s website.
     Driver or audio-effect changes can affect bass response.
5. Check the audio accessory or app controls.
   Some headphones, speakers, and apps have their own independent sound controls, so bass-heavy playback may need to be adjusted there as well.

If the sound suddenly changed and became flat, tinny, or otherwise wrong after a crash or update, reinstalling the audio driver is a documented next step.

References:

• Fix low or quiet sound in Windows
• Surface sound, volume, and audio accessories
• Computer crashed and now my sound is awful - Microsoft Q&A
• Bass Management