Seems MS is using some underhanded methods to try to force people to upgarde to Windows 10. This guy explains how to prevent that from happening. I will be turning off Cortana as soon as this is posted. Screw a bunch of that nonsense.
FYI: I do have Windows 10 installed and I do like it.....but after watching this guy's first video I decided to have a look at his "Windows 10 Spying" video. I did disable most things he went through in the video.