Clean and well-maintained computers work better, are safer to use, and last longer - but not everyone has the time or technical knowledge required to look after their PC. That’s why CCleaner was developed. Launched in 2004, it began as a tool for advanced PC users to keep their home computer clean, optimized and maintained. Over 2.5 billion downloads later, it now reaches a much wider audience and has evolved to meet the changing expectations of its users.