CCleaner - FAQ
Optimization and Cleaning
Why does CCleaner close after cleaning?
There is an option to close the program after cleaning. This may be checked in the Options section.
Additionally some users have reported that viruses or malware can prevent CCleaner from running, so make sure your antivirus software is up-to-date, and do a full system scan.
Product News
April 25, 2013
CCleaner v4.01Improved browser support!
April 23, 2013
Defraggler v2.14Added Freespace Defrag to scheduler!
April 17, 2013
CCleaner for Mac v1.07New interface and icon!