Now I've still been trying to figure this out and I went back and did everything I could again. I saw that the Blizzard Entertainment folder was still there, even though I remember deleting it.
( https://us.battle.net/support/en/article/deleting-the-battlenet-cache-folder-pc )
So once again I deleted it and checked again afterwords to make sure it was gone; which it was. So I start up the game, hoping it would work. It did not.
So, curious now, I checked for the Blizzard Entertainment folder again and, there it was. So if this is my problem, than how do I get this to stop reapearing, or if I'm doing something wrong in the process, please let me know.