Malwarebytes is a great program that can help control the annoying “pop-ups”, as well as serve as an additional anti-virus to AVAST. You can get your copy at: https://www.malwarebytes.org/mwb-download/thankyou/ As with AVAST, the FREE version will be more than sufficient. There is no need to “upgrade to the premium version.” It is recommended that you run the search once a month.