Hello,
I have tried two BT v2.0 + EDR adapters (Kensington and Bluetake) on my PC in order to get BT Audio to function with my Creative CB2530 stereo headphones, but to no avail.
Though I can find the 'CB2530 Audio Sink,' when I try to connect I receive the error "The operation could not be completed. The error was 0x81000015."
Also, I noticed that during the multiple installations that I've done, there is always a long pause while installing 'Bluetooth Audio' and 'Bluetooth High Quality Audio.' Both yield an error message either while copying a file named KSPROXY.AX or immediately after having copied it (the error messages quickly disappears).
Considering what I've found on the web and specifically Geekzone, it appears possible that there could be an issue with COM ports--but I'm not sure. I re-installed the adapter after having disabled LPT and Serial ports in the BIOS (freeing up two COM ports and some addresses), but still no luck. Thanks in advance for any help with this.