I have been using Avast for over 10 years on mac, windows, android and apple devices. I have never had any problems until a month ago. Windows did an update and suddenly Avast is blocking two programs that I have always used without problems. The two programs in question are Mixed in Key and Mash up 2 from the same company. If I disable the shield on the icon in the bottom right they work, but with the shield active they do not work. I have no idea why this happens.