CCleaner (originally Crap Cleaner), developed by Piriform Software, is a utility used to clean potentially unwanted files and invalid Windows Registry entries from a computer. It is one of the longest-established system cleaners, first launched in 2004. It was originally developed for Microsoft Windows only, but has since expanded to cover macOS and Android.
OS: Windows 7 or later
Processor: 1 GHz
RAM: 512 MB
Storage: 50 MB
OS: Windows 10/11
Processor: 1.5 GHz or higher
RAM: 1 GB or more
Storage: 100 MB