Thanks for the suggestion [BeardyBrun] which tled to the solution.
While I could map the keys CTRL+ALT+F7 to SOME other software such as TrackIR I found some other things such as creating a Hotkey for a desktop shortcut not possible.
I pinned it down to System Tray application called Sound Switch where a preset shortcut ALT+CTRL+F7 which I’ve never used, had an option to be disabled.
Doing so has done the job so thanks again.