Avast is compatible with Window 7 though Windows dropped support for gadgets long ago due to security issues, which is likely why other software’s don’t test compatibility with gadgets anymore.

Just because you have gadgets installed on your system still doesn’t mean it’s supported, it just means you never seen the notice that it was no longer going to be supported :slight_smile:

If you navigate to Programs and features - then on the left is Turn Windows features on or off - within that screen you’ll be able to untick Gadgets which was the notice sent out by Windows to disable the service.