CCleaner – Portable System Cleaner
CCleaner is a Portable System Cleaner, system optimization and privacy tool that can help speed up Windows and free up valuable hard disk space. It can remove unused files from your system and further clean all traces of your personal online activities like your Internet browsing history, typed urls, cookies, index, dat files and much more. Best of all, it's portable software, so you can bring it with you on a USB flash drive or other external device.
CCleaner Portable Screenshot:
Extracted Size: 3MB
Authors Website: http://www.piriform.com/ccleaner
Download: Get Ccleaner Portable