PowerPoint Issue with auto start presentation

When the pc reboots, full powerpoint is loaded sitting over the top of my auto started pps presentation.\

Presentation slides content is blocked by powerpoint regular application screen.

I have a desktop shortcut in c:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp

that runs a .ppsx file which is a auto start presentation file.

I can't figure out why powerpoint full application starts on it's own over the top of my presentation !