bluetooth device rfcomm protocol tdi

Please help,

I have a dell inspiron 1545 15r series. I am unable to access the bluetooth module. In the device manager initially it didnt show the bluetooth device. Then after I have added "add legacy hardware" I found the bluetooth rfcomm protocol tdi driver. I have installed it, but an exclamation mark shows up saying error code 10,cannot start the device. I have downloaded the recent driver from dell website too. The installation using the compatibility settings (i use win8)  runs smooth. But during installation it says to activate the wireless switch. I tried using Fn+F2 but nothing shows up. However the installation is complete and when i run the software from C:/program files/WIDCOMM/BLUETOOTH software/BTT.exe nothing happens! I tried every possible method!

Please help