Bluetooth icon dissapeered from windows 7 when was working fine before?

[-trollface]

I recently bought a bluetooth speaker which i connected to my dell laptop via bluetooth connections and it worked fine for about a day, now suddenly the bluetooth icon has disappeared from my control panel. Doing a search for it only comes up with devices and printers and setting up connection or network, there is no bluetooth option anywhere. The only thing that does come up is bluetooth file transfer, and when i try to use this it says 'the connection could not be established, check to make sure the bluetooth radio is plugged in'
I dont understand why this is happening? Its like my laptop no longer has bluetooth on it. Although the bluetooth light on my keyboard is still lit up.
Any advice?