CCleaner removes unnecessary files, corrects errors in your Windows directory and optimizes its settings for a performance boost
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Piriform CCleaner is a free system tool that removes unnecessary or redundant files, fixes errors and optimizes software to speed up your PC and protect your privacy. It's one of the most popular PC cleanup tools around, and for good reason.
Simply select a drive to scan it, and CCleaner will show you how much space you can save, and which tweaks it can make. Choose what to remove or fix, and the software will do the rest.
CCleaner also boasts a registry cleaner to remove unused entries and correct errors that could slow down your PC, plus a secure file shredder for erasing confidential information.
The latest version of CCleaner features improved support for Windows 10 Anniversary Edition, improved cleaning for Microsoft Edge, updated management for Firefox extensions, and several other bug fixes and interface improvements. For more details see CCleaner's official release notes.