CCleaner is a freeware system optimization, privacy and cleaning tool. The extra C stands for "Crap," and the program's aim is to clean your system from just that - the temporary and unnecessary files that accumulate over time. You might be surprised at how much disk space it can recover, fast, by performing a rather thorough cleaning of your system and online activities.
CCleaner also deletes temp files and recent file lists from a long list of third party applications, plus it comes with a registry cleaner that scans for things like obsolete entries, missing DLLs, missing shortcut references and other stuff that could eventually cause conflicts - it backs up your registry before making any permanent changes. Other useful features include a startup manager and an application uninstaller, but CCleaner is essentially designed to do one thing well, and that is to remove junk from your system quick and easy with little effort on your part. You can grab the latest version of CCleaner from our downloads section.