One...clear history.
Two. Stay away from any of these programs
7FaSSt, AccessPlugin, ActualNames, ACXInstall, AdBreak, AdultLinks, AproposMedia, Aornum, ASpam, AutoSearch, BargainBuddy, BDE, BookedSpace, BrowserAid, BrowserToolbar, Bulla, ClickTheButton, ClientMan, CnsMin, CometCursor...