I've tried so many solutions that I may have a problem that I don't see. Or, I end up with a Bluetooth Bus Enumerator device to no avail. I either get a message that Windows cannot install the driver or I have to uninstall the current Bluetooth software (which I can't find). Some claim that the Lenovo driver works, but not for me. I researched (and researched) and tried several solutions. The device manager doesn't show a bluetooth device. But Dell, Microsoft, and Broadcom put their little heads together and decided I didn't need bluetooth anymore. My latest dilemma is the Broadcom mini 370 Bluetooth adapter. I have a Dell M6400 laptop and upgraded to Windows 10 ( from Windows 7).