When opening powerpoing a new blank slide opens

[bythelake]

Every time I open powerpoint, a new blank slide opens. I have 2 questions:
1. Is there a way to turn that off and simply allow me to choose what I want to open? Or at least close it without having to save changes or not.


2. If I can't turn it off, why am I asked if I want to save changes when I haven't touched that presentation? I get that same question even when I open "any" presentation and make NO changes. Why? Of course if I make changes, I understand why it would ask, but if I just open a presentation to look at something, I shouldn't be asked if I want to save changes or not.