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 5.38.6357 發布

Changes in CCleaner 5.38.6357 (December 12, 2017):

Browser Cleaning

Edge: Session clean no longer removes set-aside tabs

Chrome: Added support for cleaning cookies from Local Storage

Cookies

Chrome Local Storage Cookies can now be managed from Cookie Manager

Windows

CCleaner no longer cleans the list of files waiting to be renamed (PFRO.log)

Installer

Fixed ‘Error opening file for writing’ error

General

Fixed a library dependency that was preventing CCleaner from opening on Wndows XP in some cases

Fixed a rare case where CCleaner could check for updates multiple times in a short space of time