Would you be a bit more clear about what you mean by:
1. Cortana keeps popping up? I have only very, very rarely seen Cortana do anything unbidden, though it does happen.
2. What settings have you tweaked? You definitely need to go into Privacy, "Speech, Inking, & Typing" pane" and make sure that "getting to know me" is off. The phrasing has changed a bit over time, but it's still obvious which setting that is.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
. . . the presumption of innocence, while essential in the legal realm, does not mean the elimination of common sense outside it. The willing suspension of disbelief has its limits, or should.
~ Ruth Marcus, November 10, 2017, in Washington Post article, Bannon is right: It’s no coincidence The Post broke the Moore story