Please remember that EMET 5.0 Tech Preview requires .NET Framework 4, and in order to protect Internet Explorer 10 on Windows 8 you need to install KB2790907 – a mandatory AppCompat update that has been released on March 12th.
I installed it yesterday. For some reason I cannot hide the icon. Well, I can but the next time I start the PC it is there again. I have even tried unchecking the report to "Taskbar" option.