CCleaner是一款免费的系统优化和隐私保护工具。CCleaner的主要用来清除Windows系统不再使用的垃圾文件，以腾出更 多硬盘空间。它的 另一大功能是清除使用者的上网记录。CCleaner的体积小，运行速度极快，可以对临时文件夹、历史记录、回收站等进行垃圾清理，并可对注册表进行垃圾 项扫描、清理。附带软件卸载功能。
CCleaner 2.28.1091
- Added support for custom locations for applications.
e.g. CustomLocation1=FIREFOX|C:\MyFirefox\Profile
- Improved detection and cleaning algorithm for new releases of Mozilla based browsers.
- Added news tasks to W7 jumplist.
- Added new command line parameters: /CLEANER, /REGISTRY, /TOOLS and /OPTIONS.
- Improved MUI cache cleaning for Vista and Windows 7.
- Added drive information to Wipe Free space status.
- Improved Wipe MFT free space routines.
- Improved W7 toolbar feedback.
- Improved several core processes and routines.
- Improved file search algorithm when recursing.
- Added support for cleaning Paint Shop Pro 12.
- Improved support for IZarc and Axialis IconWorkshop.
- Minor GUI tweaks.