R rakatoa Member Joined Feb 11, 2014 Posts 12 Feb 28, 2014 #1 Hi guys, I use Win7 Ultimate and recently I got the problem that my internal Bluetooth radio stopped working and it completely disappeared from the Device Manager. Windows does not detect its presence in the system and I cannot see any yellow exclamation mark indicating that there is some device not working properly or that a driver is not installed properly. I have a hardware switch on my notebook that is used to turn BT and WiFi on and off. When I turn ON the switch, my Wi-Fi is working properly but no sign that BT radio is present. In my BIOS I could not find any setting that allows me to enable/disable internal BT radio. Is there any registry setting that might be manipulated to enable/disable internal BT radio? Does anyone have a suggestion how can I get my Bluetooth to work again. Many thanks in advance.