CC will not complete deletion

CC gets to 96% complete and then stops. there is a big difference in the number of files to be deleted and the number actually deleted

Can you give a bit more info please?

Operating system used.

Build of CCleaner used.

What security software you run.

How do you know the amount deleted if it never finishes?

Hello hazelnut andthank you for responding

I am using Mac 10.11.6 and Firefox and have just downloaded CCleaner having deleted my old version as I was having so much trouble. You are correct in that I don't know how many files

will be deleted but at 96% completed there is not much left to delete - or am I assuming too much here? I am not using any additional security software.

Kind regards,

Ken