Where does Recuva store preview information?

I ran a deep scan, but I didn't recover any of the found files. What I want to know is the following: Where exactly does Recuva store the preview information, such as thumbnails, about said files? Are they in temporary files? ...compressed files? Where are they, and how do I delete them? Again, I am not talking about the files themselves, just the preview information about them.

Recuva Stores nothing

Recuva Stores nothing

Are you sure?

Since the thumbnails show up on my computer screen during preview, I figure they must be stored somewhere, or atleast temporarily so. Ya know? Perhaps they are thrown back into the freespace after Recuva is done with them.

Can you reassure me about this? Because if they do exist, I would like to delete the thumbnail and preview information for good. Any further help would be greatly appreciated.

There is no disk storage. The data sits in RAM until Recuva closes.