Hello olddog. I have two computers with Vista Home Premium and my wife has Windows 7 Home Premium on her one. The Community box on her one, after unticking, remains unticked. One of mine is only used to watch films as it is hooked up to the TV and is not used a lot. That is the Vista one that also stays unticked. The main Vista one which I use daily is the one that, after unticking and then going to another page of Avast and then going back to the Settings page shows the Community box ticked. Being kept ticked is not a problem but I wondered why it is the only one to do so. Then again, reading on the forum about so many others having severe problems I wonder what variables must be involved for Avast not to be troublefree for them.