Since using Vista I have noticed that if I include Windows Log Files in the analysis the amount cleaned is consistently about 17MB more than the analysis figure regardless of what the analysis figure is (except 0). This happens on my Acer desktop and an HP laptop. Both run Vista
When I analyze excluding Windows Log files the amount cleaned is the same as the analysis.
This does not happen with XP or Win98SE. I am using v2.16.830 of CCleaner.
Past experience is that with Windows Log Files deselected the amount cleaned equals that of the analysis.
The following is an actual example