Google Chrome creates thumbnails of your most visited websites to allow you to easily visit these same webpages on future visits. If you don't want others to view thumbnails of your favorite sites, you can manage and remove the thumbnails. Deleting a thumbnail permanently removes the website from your most visited sites.
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Click the Windows orb located in the bottom left of the screen. Click "All Programs" and then click "Google Chrome."
Click "File" from the top menu and then click "New Tab." The New Tab page displays "Apps," "Most Visited" and "Recently Closed" sections. The Most Visited section displays thumbnails of the websites that you visit the most and provides easy access to these sites by simply clicking the thumbnail.
Place your mouse over the thumbnail you wish to manage. An "X" appears in the upper right corner of the thumbnail.
Click the "X" to remove the thumbnail. The thumbnail won't appear again when you open a new tab.