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。 同时支持IE、Firefox，不含任何间谍软件和垃圾程序，支持包括简体中文在内的26国语言界面！

Piriform CCleaner的主要功能：

1、针对Windows系统的系统缓存和部分应用程序产生的临时缓存类内容的清理；
2、智能扫描多个品牌的浏览器产生的Cookies内容并可以压缩浏览器的数据库；
3、可以直接卸载Windows 8+系统自带的Metro类应用程序（微软提供命令行卸载）；
4、可以直接清理包括IE、Google Chrome、Mozilla Firefox等多种浏览器的各种插件；
5、支持直接操作系统中所有的开机自启动项目，除了可以禁止外还可以直接删除启动项；
6、对磁盘驱动器的多次复写：该功能允许对机密文件删除后多次复写防止恢复；
7、对磁盘驱动器中重复文件的查找以及分析磁盘驱动器各类内容的占用情况；

CCleaner®

CCleaner is the number-one tool for cleaning your PC.
It protects your privacy and makes your computer faster and more secure!

Award-winning PC Optimization

Trusted by millions and critically acclaimed, there’s a reason why CCleaner is the world’s favorite PC optimization tool! Easy to use, one click cleaning so beginners can optimize their computers in seconds. Plus, it’s packed with advanced features for power users.

Faster Computer

Is your computer running slow? As it gets older it collects unused files and settings which take up hard drive space making it slower and slower. CCleaner cleans up these files and makes it faster instantly.

Safer Browsing

Advertisers and websites track your behavior online with cookies that stay on your computer. CCleaner erases your browser search history and cookies so any internet browsing you do stays confidential and your identity remains anonymous.

Fewer Errors & Crashes

Over time your registry can become cluttered with errors and broken settings which lead to crashes. CCleaner’s patented registry cleaner clears out this clutter to make your PC more stable.

Quicker Startup

Many programs run silently in the background when you start up your computer. CCleaner helps you get to work, or play faster by letting you disable unneeded programs.

Home Page: https://www.ccleaner.com/

下载地址

官方下载
CCleaner 5.83 Free / Professional / Business / Technician Edition 官方版
[免费版] Standard Edition：https://download.ccleaner.com/ccsetup583.exe
[专业版] Professional Edition：https://download.ccleaner.com/ccsetup583pro.exe
[商业版] Business Edition：https://download.ccleaner.com/be/ccsetup583_be.exe
[技术员版] Technician Edition：https://download.ccleaner.com/te/ccsetup583_te.exe
[便携版] Portable Edition: https://download.ccleaner.com/portable/ccsetup583.zip
[无工具栏版] Slim Edition: https://download.ccleaner.com/portable/ccsetup583.zip

Piriform CCleaner v5.83 专业版
百度网盘：https://pan.baidu.com/s/1B2Pzewv2bqVkOHMZVfoejQ 提取码：so42

专业版安装指引：
任意用户名
注册码：C2YW-XZT7-A4SE-UD89-YZPC
断开网络安装，输入注册码

将以下网址 加入C:\Windows\System32\drivers\etc\host

0.0.0.0 analytics.ff.avast.com
0.0.0.0 ipm-provider.ff.avast.com
0.0.0.0 license.piriform.com
0.0.0.0 www.ccleaner.com
0.0.0.0 shepherd.ff.avast.concc.avast.com
0.0.0.0 ncc.avast.com.edgesuite.net
0.0.0.0 ip-info.ff.avast.com