To top it all, CCleaner is not only available for Windows, Mac and Android devices for a ridiculously cost-friendly price, but you can also test the software for free for 14 days. No matter what the problem is, this program does the job fantastically well by finding whatever issues your device has and fully leaving every program’s settings, scanning and repairing details in your hands. Even though disk defragmentation, hardware analysis and deleted files recovery have their own dedicated programs, CCleaner is still an outstanding solution when it comes to cleaning files from your system next to fixing your registry issues. Probably the best-known PC and registry cleaning software in the world (with over 1.5 billion downloads and counting), CCleaner was developed by Piriform, a global leader in PC optimization software. If you have heard the name CCleaner before, you are not mistaken.