CCleaner has reported removing 14,140,338,697,505 MB on a 450GB drive. How could such an extraordinarily high number have been enumerated?
We have seen similar before.
The first thought is does anything on the Advanced Report also show an unbelieveable number? You screenshot doesn't show it all.
I'm thinking particularly about the recycle bin, which is often the culprit in reporting files that are not actually there.
If it is a false report (from the bin, or anything else Windows) then doing a new analyze in CCleaner should show it again.
The time reported is also large, 10 minutes for a clean?