If you hide the entire top block where the menu is, I think it will look terrible. Are you using Artificer? A better option is to hide the menu items(icons), which you can do in the navigation, just find the right section.

Or go to---Designer--settings--Default page type for visitors ---- or you can also use the Splash page and customize it to your liking.

Thank you. All that was done as well. It still shows the previous icons I mentioned. We even tried Designer Without Heading/Footer. Made no change. In earlier versions of UNA CMS it would.