Did you manually set the option "Warn me before installing apps from outside the Store" or something like that? (under Apps & features)I have had two unusual experiences today. I got the infamous "SmartScreen is not available" message when executing an installer via RAS. This happened once only.
Issue #2: Upon executing an installer via RAS, I am receiving a brief visual of the Windows Store trying to connect, then disappearing almost immediately. This is followed by the expected UAC prompt. Might this be a Windows bug, some corrupted system files, or.... ? Very strange.