Not sure if this is in the right place but got a weird one.

The volume slider on my pc displays correctly, slides from top to bottom fine, but 1%-100% outputs the same volume (as far as I can tell it outputs 100%) and 0% correctly mutes the output.
Programs like VLC and WMP allow me to change the volume that they output fine, but windows controller just doesn't.

I've reinstalled windows since this began but no change.

Anyone had a similar problem?

Thanks in advance, Mark.