Lenovo X230t and Win8
Bluetooth Drivers for Win7 do not work (g4wb12ww.exe) Install Drivers for Win8 (g4we14ww.exe). Compatibility mode not necessary (?)
Install gevu60ww.exe (??). Do not install driver from this file. Run c:\DRIVERS\HOTKEY\SETUP.exe in Win7 Compatibility mode. If not logged in as admin, make sure you change compatibility mode for all users.
Then Fn+F5 should work + HW switch. BT is by default always on. Create a shortcut in Startup folder with:
"C:\Program Files\Lenovo\HOTKEY\TpFnF5.exe" /BTOFF