Success of Premier Installation in question.

I got a virus today and called tech support for assistance. The tech told me that avast was not installed correctly because windows was not configured correctly. This is a new PC and I had a successful installation according to the message i received after the install completed. The tech wanted me to pay 179 bucks to have a MS engineer “clean up my PC”. I was not willing to do that so I fixed it myself. My question is this. When the tech took control of my PC she pulled up a screen that showed windows thought I had Avast Pro installed but my software is Premier. I think all is well now but does anyone have any idea how she got that information? Was that from the diagnostic SW she ran or is that a screen I can pull up in windows.

Bottom line, how can i tell if my Avast Premier is actually installed correctly and protecting my PC? :o

Just open the GUI.