Eusing Cleaner Portable is a system optimization and privacy cleaner tool. It allows you to find and remove the unused files in your system, invalid registry entries, delete your internet history, provides plug-in support to clean the history for over 150 third-party applications. You can select the items that you want cleaned and also specify cookies that should not be deleted. With simply one click, Eusing Cleaner can erase the cache, cookies, history, typed URLs, autocomplete memory, index.dat from your browsers, and Window's temp folder, run history, search history, recycle bin, and recent documents, etc. It also includes an option to overwrite deleted data multiple times, so it cannot be easily recovered. Additionally it contains a fully featured registry cleaner. It will scans your Windows registry for invalid or obsolete information and provide a list of the errors found. After fixing the invalid entries, your system will be more stable and run faster. It offers an integrated backup feature, so you can restore the registry in case your cleanup operations cause any problems. Furthermore, Eusing Cleaner also includes registry defragmentation. It will enhance your system's performance by removing gaps, fragments and wasted space in Windows registry files. Eusing Software products are free of spyware and adware.