Ok I ended up figuring it out but it's a little strange. I read this post and did the same thing.
""Thanks Leo. I reinstalled windows 7 just to get back to a baseline for IIS and my certificate stores.
When it comes to showing a 404 error page to your visitors, you do not want that generic page to show, and you especially do not want your hosting provider’s ad error page to show either.
In this article, I will show you how to enable the custom 40…