wireless headset pairing with usb bluetooth dongle

[fares salah]

hello , i have a problem  i can't fix and i can't figure out the reason

i recently bought a wireless headset called P47 , it works fine with any smart phone in wireless mode

however when i tried to pair it with my desktop computer via bluetooth using bluetooth v 2.0 dongle it didn't work

the dongle shows up as working properly in the device manager and it catches the headset and pair it , but still the headset shows that it is not working ok , that little alarming yellow triangle shows beside it's icon and drivers seem not ok

i tried all the drivers i could find online which are many btw

nothing worked

i use win 7 32 bit desktop pc and i really hope for solution , i would be so grateful