CCleaner Professional

CCleaner originally stood for Crap Cleaner, in other words a junk cleaner. The program searches for unused, unnecessary and temporary files on a PC. In particular, cookies, browser caches, temporary internet files, Windows history lists, the contents of the Recycle Bin and other clutter are removed.

To decide exactly what gets deleted, CCleaner lists the cleanable items of Windows and of supported installed applications - for example browsers such as Opera, Chrome and Internet Explorer, players such as AIMP, archivers such as WinRAR and WinZIP, or Nero tools - and you can tick or untick each entry. Chkdsk file fragments, Windows memory dump files and log files can be deleted too. The Windows registry cleaner is also useful: it finds missing shared DLLs, unused file extensions, invalid application paths left by incorrectly removed programs and other entries that accumulate on any PC over time. Before fixing registry issues, CCleaner offers to save a backup, so changes can be undone. The paid Professional edition adds a Performance Optimizer, Driver Updater, Software Updater, PC Health Check, scheduled cleaning and automatic browser cleaning. Cleaning up the accumulated junk on the hard disk frees up space and can make the system a little faster. A free edition with basic cleaning is also available.

CCleaner Professional frees disk space and protects privacy by removing junk files and browsing traces, and adds automatic cleaning.