

When you use Horizon Client to connect to a UAG that is SAML-enabled:

This is an identity operation and thus the Horizon Enrollment Servers should be treated like Domain Controllers. Horizon Enrollment Servers ask Microsoft Certificate Authority servers to generate the SSO certificates for each user.

But, the Key symbol which appears wherever you go, whatever program you open which is annoying. I am not talking about the Desktop Watermark which tell the version number and Windows 8 build. This Activation notification stays on right bottom always. Problem comes after few hours when Key symbol appears everywhere nagging you about activating Windows 8. Windows 8 RTM was leaked and out of curiosity, you may have downloaded and installed it right away. 7 How To Remove Windows 8 Activation Notification Watermark Graphics
