CCleaner is a freeware 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. Whats new in this version Improved Firefox Local Storage and Cookie cleaning. Improved Google Chrome 64-bit support. Improved Firefox Download History analysis and cleaning. Optimized Disk Analyzer scanning process. Improved detection and cleaning of portable browsers. Updated various translations. Minor GUI Improvements.