Please follow the additional steps below.
Reset Sound Devices
Go to Settings → System → Sound
Scroll down → Click Volume mixer
Click Reset at the bottom
Spatial sound = Off
Remove Hidden Audio Devices (Important)
Press Windows + X → Device Manager
Click View → Show hidden devices
Expand:
Sound, video, and game controllers
Audio inputs and outputs
Uninstall anything greyed out and any duplicate FDUCE / USB Audio Device
Restart PC
Reset Windows Audio Registry (User Profile Fix)
This fixes corrupted sound settings in your account:
Press Windows + R
Type:
regedit
Go to:
HKEY_CURRENT_USER\Software\Microsoft\Multimedia\Audio
Delete the folder named "Audio."
Restart PC
Windows will rebuild fresh audio settings for your profile.