Icons No Longer Visible

Hello,

I have a folder with 60 image files, and I can't seem to get an icon for any of them, much less use the Preview pane, in the View Menu of an Explorer window. Slogging through 60 images by opening them one by one seems a bit...problematic.

I have been through the "View-->Options --> Change folder and search options" section more times than I care to count, as well as watching lots and lots of videos (which happen to all say the same thing).

Are there any other settings which might fix this problem?

Thanks in advance,
Carol

A screenshot speaks a thousand words.