our automated system analyzes replies to choose the one that's most likely to answer the question. Clear most visited websites and its thumbnails from google just go to settings>personalization>start and uncheck 'show recently opened items in jump lists on start or the taskbar', this should be the last optinon with an on off switch on this page. Here's how to clear the most visited websites content and its thumbnails from google chrome startpage.read more: karthikk.