I have Avast Pro version 11.1.2253 with plenty of time left. However, I object to popups arriving most days saying that I need to speed up my PC or have this some other feature, go through the routine of speeding up my PC, or whatever, only to be told that I need to have the Premium version. I'm happy to be told my lience is to expire shortly, but I don't want a nag coming up all the time for this feature or that. How can I stop it?