CCleaner is a free tool that helps you clean out temporary files, cookies, cache, history and other junk from your computer. It also optimizes system performance and fixes problems with the Windows registry. It was developed by Piriform Ltd., a company based in Prague, Czech Republic. The program has been downloaded over 100 million times since its release in 2004. CCleaner is a utility application designed to remove unwanted files from a PC. The Application gets the removal of temporary files that free up disk space and unwanted registry keys. During the cleanup free up space, malicious files in the device are also deleted. CNET gave the software a "Very Good" rating in Jan 2017. CCleaner is the most widely used freeware cleaner in the world. It cleans up your PC without affecting your privacy or security. It removes unused programs, temporary files, cookies, caches, browsing history, and even some settings.