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 5.08.5308:
- Improved Windows 10 (10240 RTM build) compatibility.
- Improved Microsoft Edge Cache and Saved Password cleaning.
- Improved Opera 30 Session cleaning.
- Added Microsoft Edge Browser Monitoring (CCleaner Professional only).
- Added 'Open CCleaner' to System and Browser Monitoring (CCleaner Professional only).
- Improved Include and Exclude Wildcard support.
- Added Foxit Reader 7 and RealTimes cleaning.
- Improved Avira Antivirus, BlueStacks and Media Player Classic cleaning.
- Updated various translations.
- Minor GUI Improvements.
- Minor bug fixes.
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