I have recently tried to connect my phone with my laptop, HP Pavilion G4, using a bluetooth dongle V 2.0, it was detected but the files could neither be sent or received. Secondly, when I tried paring my bluetooth headset, MDR-XB650BT, windows did not even detect it. Kindly offer a solution for both. I have heard that bluetooth works perfectly on windows 8 and 8.1, should I go back to them?