CCleaner - FAQ
Optimization and Cleaning
Can CCleaner be installed and run silently?
Use a /S (uppercase) parameter when you run the installer. This will use all the default options and not bring up any option windows.
To run the cleaner silently, use the /AUTO parameter on ccleaner.exe.
Product News
May 24, 2012
CCleaner v3.19Farewell UAC warning dialog with new faster startup!
May 24, 2012
Defraggler v2.10Now with 30% faster defrag!
April 25, 2012
CCleaner v3.18Added Firefox 12 and Chrome 20 support!