mrpbnm

Thanks Nergal. That's what needed to know.

Well I first updated to the latest version. That didn't fix it. Then I turned off the 1 pass secure deletion. That made a world of difference: cleaning 300 MB took seconds instead of minutes. The question is: "How clean is clean without any overwrite?" Would it be a simple matter to undelete all of the files that appear to be deleted?

All good points. I will try to fix the issues noted above and get more data. I'll let you know what I find. 1st step update CCleaner... Thanks all.

I think CCLeaner runs extremely slowly. It used to run and close down in a few seconds. Now it takes forever. For example: today I did an analysis before running the actual cleaner (something I never do). It took 2 minutes and 4 seconds to clean ~18 MB of files while set at "Secure file deletion (slower) Simple overwrite (1 pass)". Doesn't that seem excessive for such a small amount of data?