Hi, about a month ago I noticed that while CCleaner empties my recycle bin it no longer does so securely. It says it has but as can be seen from the attached screen grab more than 8Gb of data was apparently cleaned using 3x overwrite in under 12 seconds (not possible). Using Win 8.1 64bit, have tried uninstalling and reinstalling the latest CCleaner with the same kind of result.
Try the Simply Overwrite (1 pass). I think it's been known for years that using more than 1 pass doesn't really work, and this affects multiple tools - not just CCleaner.