CCleaner是一款免費的系統優化和隱私保護工具。CCleaner的主要用來清除Windows系統不再使用的垃圾文件，以騰出更 多硬盤空間。它的 另一大功能是清除使用者的上網記錄。CCleaner的體積小，運行速度極快，可以對臨時文件夾、歷史記錄、回收站等進行垃圾清理，并可對注冊表進行垃圾 項掃描、清理。附帶軟件卸載功能。
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.