How do you fix "Your configuration has been modified (prn.ini.,startup) Please re-install

I tried to re-install, but get a message that it is already installed.  Non of the information I researched on my computer indicates that there is already another installed.

 

The problem started yesterday when I renamed the file that had the name misspelled, and then deleted the old file.  I found the "prn.ini" file, but don't know what to do with it, or maybe that's why TT thinks I have the program already installed??  Please advise.  Thank you.