I installed Windows 8 over a Boot Camp installation of Windows 7 on my mid-2011 iMac. By and large it's worked perfectly, UX issues notwithstanding, apart from the rather critical part of a complete lack of Bluetooth. This means I can't use my Apple Wireless Keyboard.
In Device Manager, I can't see any item that's related to Bluetooth, and in I'm not able to add any devices. I've tried re-installing the latest Boot Camp drivers, but I'm a bit lost at this point.
Any suggestions would be much appreciated.