I have the Windows 8 Enterprise Evaluation. I recently installed Norton 360 and I am getting heaps of messages from the action center saying there is nothing protecting my computer. So I click on it and it comes up with 2 options. 1 is Windows Defender and the other is Norton 360. Both of them have options to turn on. I try to turn on Norton 360 and nothing happens. So I try to turn on Windows Defender and still nothing happens!!