Norton hijacks my screen

My screen gets 'taken over' by Norton and clicking the 'X' button at the top of the Norton hack doesn't get rid of the pop up. This time its the middle of the night and I'm supposed to restart my machine in order for the pop up to disappear. Furthermore I cannot attach the screenshot; on my desktop right now, using the little colored screen at the top of this post.  I have to stop what I'm doing and restart my computer to satisfy the whim of some marketing genius at the company, I will one day, never have to employ again!