I have been using Avast browser for several years, now, so there is no data from another browser to import. I have been an AVAST customer for longer than I have used the browser.
Some additional information, even when you do find a spot that might let you change the search engine (it is REALLY buried), and you remove Startpage and enter your preference, Startpage DOES NOT LET GO.
Ladies and Gentlemen, I will not be tyrannized by a piece of software. And that's what this is....tyranny. You can either FIX THIS, or I WILL SAY GOODBYE TO AVAST, and take my money elsewhere.