I had recently downloaded AVG antivirus free 2017 and had tried the free trial of AVG Internet Security and when the trial had expired, every time I try to run a computer scan with AVG antivirus free this box shows up over top of it as soon as I try to open it and on the screen it states in red that the internet security trial has expired. I am not interested in purchasing this useless internet security, now how do I get this off my computer so I can run a computer scan with AVG anti virus free 2017? I have tried to uninstall it and re-install the AVG free antivirus 2017 but it still comes up.