How to change avast cleanup premium to full size screen

I have a very simple question. How do you change the settings in Avast Cleanup Premium to show full screen. I cannot access all its features because I can’t see them!

If you’re using Windows GUI scaling, try disabling that and see if it helps. Close and re-open the Avast window.

Avast keeps breaking and fixing their GUI scaling, and then they break it again.