I#m a pensioner and have been running free version of CCleaner for ages--just updated ( not just once, removed and reloaded twice) and found i cannot use it as the screen does not show the lower section--so no where to set start up, what is going on (all other functions of my Dell note pad are fine (even though i am running XP , with SP3)
It may be to do with the new interface. I'm sure the devs are aware of this issue.
You can always go back to build 4.19
I am having exactly the same problem. Will try to revert back to a previous version. Thanks!