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Remove history in internet explorer address bar
http://www.softwaretipsandtricks.com/windowsxp/articles/299/1/Remove-history-in-internet-explorer-address-bar
Super Admin
 
By Super Admin
Published on 02/24/2005
 
Internet Explorer keeps track of each URL that you type in the address bar as a convenience to save you from typing the next time that you visit that site. 

Remove history in internet explorer address bar

However, any user that uses your computer can find out what addresses you typed in as well so some may be interested in clearing the address bar addresses.  Just clearing the browser history will not do this as a registry modification is needed:

Click on Start, then Run.
Type regedit in the box provided.
In Regedit navigate to HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Typed URLs
Then just delete all of the keys that list the URL's you no longer want to see.

Note: Clearing the recent documents history from start menu properties will clear this list as well.