CCleaner is the best pc cleaner to clean the computer.
If this clutter is not removed, it ultimately slows down the computer which leads to increasing boot time. It is very small utility of just 3.26 MB in size.
Best System Cleaner : CCleaner
CCleaner is the best tool for system cleaning . There are more than 500 million downloads of CCleaner since its launch. It shows the popularity of this tool. The various reasons behind the success of this software are
CCleaner is 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. But the best part is that it's fast (normally taking less than a second to run) and contains NO Spyware or Adware!
Although it lacks a few of the bells and whistles found in other PC-cleaning applications, this free program offers more than enough features to make it a worthy download. CCleaner’s interface is logically designed and makes it easy to wipe away your tracks from Internet Explorer, Firefox, Opera, and Google Chrome from various Windows system areas, and from some third-party applications.
CCleaner also includes a registry scanner, startup manager, and Add/Remove Programs area to uninstall applications you don't use anymore. CCleaner 2.0 is a free download for Windows only.
Download : LINK1