R8- Preview&thumbnail images not showing-W10 folders.Old R6 still preview

R8- Preview and thumbnail images not showing in W10 folders. My old R6 files still preview. So its not a windows setting issue. Thoughts?

Hi James -

I would start by repairing the Rhino 8 installation and rebooting the machine.
Other suggestions → Previews of Rhino files missing in Windows Explorer [McNeel Wiki]
-wim