Daily Telegraph
"For those who know where to look your computer contains a treasure trove of information about what you get up to, seriously compromising your privacy and security. CCleaner gets rid of it all in one brief operation; easy to use and essential for your piece of mind."

Read the full review at:
http://www.telegraph.co.uk/technology/advice/3358367/Bootcamp-540---Freeware-Top-Tens-part-4-Privacy-and-Security.html