CCleaner

Product: CCleaner v3.06.1433
Company: Piriform
Website: www.piriform.com
Type: Free
Requirements: Windows XP/Vista/7

CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner.