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.

CCleaner Professional:
NEW: Software Updater
Faster Computer
Privacy Protection
Real-time Monitoring
Scheduled Cleaning
Automatic Update

Whats New

http://www.piriform.com/ccleaner/version-history

Assembly information
Type: install, unpack portable
Languages: Russian, english, multilanguage
Activation: key + branding.dll
Extras: CCEnhancer, Telemetry block

Command line parameters :
Silent installation Free: / S / IF
Silent Installation Business: / S / IB
Silent Install Technician: / S / IT
Silent Installation Professional: / S / IP
Unpacking portable Free: / S / PF
Unpacking portable Business: / S / PB
Unpacking portable Technician: / S / PT
Unpacking portable Professional: / S / PP
Block telemetry: / TM
Do not create shortcuts on the desktop: / ND
Do not create shortcuts in the Start menu: / NS
Selecting the installation location: / D = PATH
The / D = PATH parameter should be specified as the most recent

For example: CCleaner.v5.49.6856.exe / S / IF / D = C: \ MyProgram

Telemetry blocking :
Visible installation / unpacking - "Block telemetry" checkbox
Hidden install / unpack - / TM option
Manual blocking via hosts:
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 license-api.ccleaner.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

HOMEPAGE

http://www.piriform.com