Thank you for your reply. As for the SSD drive, I took it into account ("ten myths about SSD that will never die")).
I'm sorry, but I'm not a newbie to software - so I can independently determine the timing and options for servicing my PC.)
Therefore, the problem with your software is described by me exactly: CCleaner does not quit after the operations specified by me. Namely, it "freezes" at the moment when all the operations by your program with my settings are performed, as can be seen from the program message (all disks are cleaned in full), but the program at this moment "freezes" and does not report which files were deleted and so on, which should be in the task completion report. In this case, your program does not close normally. You can close it only through the task manager, or by restarting Windows. CCleaner
This is, in my opinion, a problem and a danger of breaking Windows. In addition, I can say that this, in my opinion, the malfunction was discovered by me in the latest version of your program - before that everything worked fine.
p .s. I ask you to explain your answer that only your open program (which has already completed all the scheduled tasks!) "can heavily load your processor" (?). I should be aware of some hidden from me as a user operations that does your program execute even without executing the tasks I activated?