Sure, the user could disable it, after a fashion, but next update (or sooner) it was mysteriously "re-enabled" at StartUp, ha-ha. Having shelled out for a CCleaner Pro licence some time back, after using the $FREE version for years, I was singularly unimpressed when Avast-Piriform (the developers) started to implement the persistent snooping functionality. If Smart Cleaning is disabled, CCleaner’s background process will close and the feature will not run on startup (same behavior as in v5.44).Reworded the ‘Active Monitoring’ checkbox to ‘Enable Smart Cleaning’.Reworded the ‘Browser Monitoring’ checkbox to ‘Enable automatic browser cleaning’.Reworded the ‘System Monitoring’ checkbox to ‘Tell me when there are junk files to clean’.Renamed the ‘Monitoring’ feature to ‘Smart Cleaning’, to better describe its purpose (intelligent cleaning alerts) and underline the fact that it does not report usage data.Added a link to a Data Factsheet, which explains the data reported from CCleaner, why it’s reported, and what it’s used for (in summary, CCleaner only reports anonymous, statistical data for the purposes of maintaining and improving the app, and it does not report any personal information).Added a separate control for the reporting of anonymous usage data.The Monitoring feature and reporting of anonymous usage data can now be controlled separately (previously both were controlled by the ‘Active Monitoring’ checkbox).Hasn't been mentioned but CCleaner 5.46 goes a little way towards ameliorating the indiscretions of v5.45.