My suggestion:
the ability to search the Registry Cleaner "found issues".
There are several occasions where I'm considering looking to remove registry keys associated with certain programs.
So, instead of me looking through a large list of keys---- CCleaner would be incredibly more useful to me if it would allow me to search the results of the Registry Cleaner scan.
For example:
I presently have CCleaner offering to "clean" a program that doesn't exist on my computer (whether due to an bad uninstall or upgrade, I don't know.)
I know that removing a few registry keys will address this problem------ I don't enjoy scrolling and scanning through a large list of registry keys upon clicking "scan for issues." It's tedious to do this on every machine with this issue and I'm sure many techs would be happy to see a built-in search function.
(Yes, I could save a text file and search through that. That's not a solution, that's a workaround. I adore the fantastic idea of ctrl + f bringing up a magical search dialogue.)