The best possible score is 10.
Purge Cache, Cookies, History and other Tracks for Internet Explorer
Professional edition of PurgeIE - Purge Cache, Cookies and Tracks for I. E.
Leave No Traces. Destroy files and directories irrecoverably,purge data fragments from free space an
Purge HistoryQueue is a tool that purge Ads servers.
A small program wherewith you can purge all the non-required cookies files.