Sometimes Microsoft Windows thinks it's smarter than the user and decides to revert the drivers on your Bluetooth dongle and/or controllers to their default manufacturer versions, which causes the software to silently stop working because it can only see and communicate with the devices through libusbK. Therefore the ScpToolkit Service has a "driver watchdog" included which gets executed on system boot. The devices selected by the Driver Installer get enumerated and checked if they still use libusbK and if they don't, it attempts to swap out the driver in the background, ensuring proper communication.

You can turn it off in ScpToolkit Settings Manager, section Service settings: