CCleaner leaves no stone unturned when scanning systems for unnecessary files.
Old school vets remember when CCleaner was called Crap Cleaner. Piriform launched the freemium utility almost a decade ago, and we still like to use it after all these years to clean up unwanted files and cache that tends to accumulate. So do many others, which would explain why it's been download more than a billion times, according to Piriform. Remarkable, CCleaner has been installed on one quarter of the world's PCs and now spans 200 countries and more than 45 languages.