Make Windows 10 Cortana listen like Amazon Alexa...

By default, Cortana (I don't like the name either) doesn't listen constantly for a prompt, like Alexa and friends do. To have your PC constantly listening for you to address it, open Cortana by clicking the search field in the taskbar and select the Notebook icon in the left-side options pane. Select Settings from the list, then simply enable the Let Cortana respond when you say “Hey Cortana” option. You’ll need an active microphone for this to work, of course.

While you are configuring Cortana’s options, you might want to look into the Notebook menu to fine-tune exactly what personal data Microsoft’s digital assistant can access. Remember, however, that like Amazon Alexa, Cortana’s effectiveness is directly related to how much personal data she has been given (and has subsequently, heartlessly sold on) about you.