I am using the free version of CCleaner V5.44.6575 (64bit) on a Windows 10 PC.
Everything has worked fine until today. I usually do a clean every week. Today when I wanted to use CCleaner, the analyzing went OK, then clicking the "Run Cleaner", the window just closes.
I have tried a re-install, but this has not helped. Any clues as to why this is happening?