Stompa

Ah, thanks for that. I'd tried searching (for 'duplicate', 'twice' etc.) to see if it had been mentioned before, but I'd failed to try 'duplication' which would have done the trick!

This is a really odd one. I've been using CCleaner for many years, and I've only had this occur since I installed v5.65.7632 (64-bit). The vast majority of the time it seems to work as normal, but very occasionally (it's happened twice now), I get duplicate entries in the WIndows tab, and also in the 'Details of files to be deleted' list. It's pretty obvious from the attached screenshot.