In the long run, your windows operating system will experience slowdowns and some software crushes, your computer will be bogged down with some unnecessary files, and you will be wondering that your computer consumed a lot of hard disk space when you eventually installed only few software and save some files on your computer. With all this issues you need a cleaner tool to remove all this junks in your computer.
CCleaner – http://www.piriform.com/ccleaner/download (you can type in ccleaner.com and will direct you on the mentioned link) A Free PC software tools that able to removed temporary and unused files, freeing up hard disk space and allowing your computer to improve its performance and to operate faster and more efficiently. This software also supports most of the internet browser like IE, Firefox, Safari, Opera and Google Chrome. It helps you clear temporary files, cookies and history. In Windows it helps you clear recent documents history, temporary files and log files and has a registry cleaner function that helps to remove older or unused registry which caused your windows for slow performance.
(Recently I found out while browsing their website that they have now the option to pay for their Home and Business Edition but eventually you can always click the free version)
Here’s a video tutorial from 5minutes.com on how to download CCleaner and use this software.