CCleaner可以幫我們清除電腦裡的「Cookies」「網際網路暫存檔」「最近瀏覽過的網址」「最近開啟的文件」「執行」「最近使用檔案記錄」「清理資源回收筒」「系統暫存檔」「日誌檔」．．．等這些垃圾，不但可以增加硬碟的空間，還可以增進我們電腦的效能。除此之外，還可以幫我們掃描檢查登錄檔，以增進我們電腦的效能。附帶軟體卸載功能。 同時支援IE、Firefox。免費使用，不含任何間諜軟體和垃圾程序。
Changes in CCleaner 2.35.1219 (August 25, 2010):
* Added Session Cleaning for Firefox and Google Chrome.
* Added support for Google Chrome Canary Build.
* Added support for SRWare Iron browser via Google Chrome rule.
* Added support to clean custom Chromium based browsers. e.g. CustomLocation1=CHROME|C:\Chromium\IronPortable\Profile\Default CustomLocation2=CHROME|C:\ChromePlus\ChromePlusUserData\Default
* Added application support for Adobe Photoshop CS5, Adobe Illustrator CS5, Adobe ImageReady CS, Nero Burning ROM 10, Google Calendar Sync and Google Talk.
* Improved application support for Adobe Photoshop CS3, Google Earth, Adobe Flash Player.
* Added support to search Uninstall Tool items by Publisher.
* Improved Custom Files and Folders accuracy to avoid duplicate reporting.
* Improved Include/Exclude Options.
* Improved Startup Tool functionality.
* Improved Registry detection algorithm for Missing Shared Dlls.
* Improved exception handling when cleaning W7 jumplist.
* Updated URL references to use piriform.com.
* Minor GUI tweaks and usability improvements. Homepage - http://www.ccleaner.com
Homepage - http://www.ccleaner.com
WinRAR 3.93 Final 版本解壓