There is some update that breaks BT connectivity with this controller and I've heard that removing Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\DeviceAssociationService\State\Store\ Bluetooth registries will solve that problem. But however I try, safeboot or not I'm not allowed to do so? Mind you have I messed with MSMG ToolKit but I never had any issues until earlier this year and I've done about 3 reinstalls for various reasons but it always ends up the same after a few updates.
What update breaks Bluetooth for you? Xbone and BT on Windows can be finicky just because. What is the machine? Do you install drivers from the manufacturers site or let Windows update drivers?