You may have to take a few additonal steps
type default programs into the search box and
use the "Change AutoPlay settings" for your device and
use the either or both "Associate a file type or protocol with a program" "Set your default programs" to get your computer under control, for instance I have Adobe Acrobat Reader, as well as Adobe Acrobat Pro installed. By default, Acrobat Pro wants to do all things PDF on my computer, but I don't need to open up Pro each time I just want to read a PDF document, so I associated the file extension .pdf to open with Reader instead of Pro. You'll just have to play with it some and determine which file types Premier has taken over and take them back.
the auto play options is only one adjustment...