This is only a suggestion. Unlike most other programmes I don't want living in my Notification Area, I want CCleaner to stay in the Notification, until I shut down the machine. This is because I can run it with a right click and not wait till it gets too much for it to clean and doing it silently. The 2 Options to start when windows starts, and clearing checkbox for close when finish doesn't do the job.
Best Wishes to All at Piriform.