I don’t know if because of the SmartScreen thing that avast no longer supports IE11 and the same goes for the new Edge browser. As I don’t use either of these browsers I can’t test to see if just disabling it is enough.

However I can recall other topics that appear to confirm that disabling SmartScreen was enough, but I think this pre-dates the dropping of support for IE11. Again, not using either of these browsers I can’t really test this.

That said