1. when start ccleaner from command line with parameter /AUTO, he perform cleaning files and folders perfectly, but why he don't execute registry cleaning? https://www.piriform.com/docs/ccleaner/advanced-usage/command-line-parameters "CCleaner runs silently and automatically, using the current set of saved options to clean the PC. CCleaner then exits." all my registry parameters checked and saved... 2. if cleaning process is long (start as p.1) - many temporary files, tray icon will be showed. if click her, main form ccleaner will. And don't close. https://www.piriform.com/docs/ccleaner/advanced-usage/command-line-parameters "CCleaner then exits." excuse me for my breaking english