First open Bing in your browser and then click on the gear icon to open the setting of the search engine. Now, click on the history tab to choose Turn Off to prevent the Bing from saving your search history. If you want to delete a single search result, just drag your mouse over the search key words and click Clear.How do you clear history completely?
Check the boxes labeled Browsing & Download History and Form & Search History.. Click the Clear button to delete your history. Right-click the Recycle Bin icon on your desktop. From the menu, click Empty Recycle Bin.. This completely removes the history files from your hard drive.