@Rowland
There's always some power usage, even if devices are in standby...
I have all of my rig devices (steeringwheel, usb-hub, control unit, bass kicker amp, button box) running through a single powerstrip that has a physical on/off switch. That way I am sure nothing draws any power when not in use.
Recent versions of Windows 11 appear to have installation guardrails that prevent the "Base Installer" installing certain files to their intended locations, The SW-Win11-Fix will install these files to an alternate location.