Constant Advertisement Nag Screen

How do I PERMANENTLY get rid of this persistent advertisement nag screen that pops up on my computer multiple times a day ? 

And NO, I'm NOT interested in buying this shamefully over-priced upgrade for software I don't need, and seldom use... so "just buy the upgrade " is not an acceptable answer.

Is the only way to permanently get of this pest is to permanently delete the software and move on to a less annoying competitor's offering ??


Thank You