CCleaner

CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from one's system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of online activities such as Cache, cookies and Internet history. Additionally it contains a fully featured registry cleaner. But the best part is that it's fast and not memory hogging as it normally takes less than a second to run. Download the exe file and click it to install in the system. Here is the website link to download the application.http://www.ccleaner.com/download