I have used CCleaner for many years with several OS. I recently upgraded to A new computer with Win 8 64 bit., and downloaded the latest version of CCleaner . I get the same problem as has been reported by several people. On cleaning the computer hangs after 2% of the removal of listed files. I have uninstalled CCleaner several times, rebooted the computer, re-installed CCleaner, but to no avail. My computer tells me that CCleaner is not compatible with Win 8 after running the compatibility programme.
A pity because CCleaner has worked perfectly for many years, on XP and Vista. As I am not the only person who has had this problem, I suggest that the programmers sort this out,