CCleaner is one of the most popular windows disk and registry cleaning utility. It scans the system for unwanted file and folders and removes it with a single click. Developed by Piriform
License: Freemium
CCleaner is designed for quick and easy junk file and registry cleaning, making it ideal for casual users. In contrast, Reg Organizer offers more advanced registry management tools and customization options, catering to users who require deeper system optimization.