[CCleaner Phoning Home v4.18.4844]

CCleaner.exe is also signed with a Symantec VeriSign digital signature for validation, I don't know if that could occasionally require some Internet connection or not depending upon how your system is configured and the security software you have installed.

 

The ccleaner binary has no zone identifier alternate data stream (that causes Windows to prompt the user before running and checks signatures), so I'm sure it's not that.  Also no security software is interfering.

[CCleaner Phoning Home v4.18.4844]

It checks whether or not there's a new version of CCleaner available. Did you tick the option "Enable Active Monitoring" ?

 

No, I have update checking DISABLED.  But it is still contacting piriform.com on every launch.

 

I did not notice this behaviour in previous versions.  Why is it checking the version number then if update checking IS disabled (if it is actually doing that)?

 

I have all monitoring disabled.

 

(Lost my account info for extray)