1.CCleaner & CCEnhancer
It cleans up the registry by removing unnecessary DDLs, obsolete software as well as files, which are unused. Includes a cookies eraser and a module to consult the different restoration points of the system. 2.Glary Utilities
Glary Utilities allows you to repair defective shortcuts, delete history in your browser, clean the registry, delete temporary files and even to destroy malwares. 3.PowerTools Lite 2011
It allows users to clean the registry, delete temporary files or to delete items, which are not being used in the start up menu. The application also offers you a small tool to backup and restores your system in case of crashes. 4.System Cleaner
Apart from its usual cleaning functions, there is an immunizer tool to protect autorun worms from USB drives and another one to optimise windows load time by allowing you to control start up application.5.Appcleaner
Appcleaner is related to CCleaner in terms of its function. Only available for Mac.
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