Can't connect bluetooth headset (iMac bootcamp win7 64bit)

[Canaan_c]

Background:

My computer: iMac late 2013, OS: window 7 64bit via bootcamp

I had my bootcamp driver installed, BT apple keyboard and magic mouse are working greatly.

Recently I bought my new headset Bose QuietComfort 35, I can't make it work on my iMac......

My Bose QuietComfort 35:

when its turned to bluetooth pairing mode,
Blue blinking light = ready to pair
White blinking light = connecting
White firm light = connected

My Problem:
1. When my Bose QC35 said "ready to pair",
I use window's "add bluetooth devices" successfully discovered my Bose QC35.

2. I right click the device icon and had it install all the following drivers(services) successfully:

Audio Sink
Handsfree Telephony
Headset
Remote Control
Remotely Controllable Devices

(I tried only install Audio Sink or headset or whatever reasonable combintions of above I can think of.)

3. My iMac (win 7 64bit via bootcamp), successfully register my Bose QC35, BUT my Bose QC35,
still blinking blue light mean => "ready to pair"
That means my Bose QC35 can't discover my iMac...............

(Bluetooth Settings "Discovery" and "Connections" sections all box ticked already....)

4. Playback devices shown the icon of my Bose QC35, however:

Bluetooth Headphones
Bluetooth Audio
Disconnected

Bluetooth Headsets
Bluetooth Audio
Disconnected

I CANNOT connect either one of it here

5. I go to "View devices and printers", click on my Bose QC35 icon,
it shown that my PC is connecting to my Bose QC35

Under it, there is a "Operations" section with two buttons:

- Listen to Music

- Forward VoIP Calls to Handsfree


I clicked "Listen to Music", NOTHING happen.........

(Of course my Bose QC35 still blinking blue light => ready to pair)


SO WHO GONNA HELP ME PLEASE !!!!!
[doublepost=1467639997][/doublepost]In addition, it work perfectly when I turned back to Mac OS side