I have a bluetooth headset, and I've paired/added it to my laptop. I check all its services and the drivers installed fine. But for some reason, the sound still goes through the speakers. I went to Control Panel->Hardware and Sounds->Sounds and it only showed 2 entries- Digital Audio (HDMI) and Speakers. There was no entry for a bluetooth headset.
I've once tried installing WIDCOMM bluetooth software. It worked at first, but later it couldn't connect to my device and had problems starting its stack service.