Windows 10: Thumbnails Do Not Work For One File Type In One Folder

I am not sure how I managed to do something like this, but thumbnails for .png files do not display in the downloads folder. This only applies to the downloads folder, and on my user account. I tested creating a new 'local user' and opened up the exact folder and it loaded the png thumbnails just fine. Screenshot showing png files not loading thumbnails, but other formats do

:)

 

File Explorer not showing thumbnails

Brink,

Many thanks for you reply. I have done all the steps you suggested, but no change,

When I open a folder containing photos, some open correctly but the vast majority open with thumbnails, but they very quickly get overwritten and you can not longer see the thumbnails.

Are there any more suggestions?

 

Windows Explorer thumbnail preview file types

Yes, that's correct. But of course Windows must support the thumbnail preview for programs that generate thumbnails.

For example, I see in your second screenshot that PDF files icons are displayed as the default PDF file type icon. But Windows supports PDF files thumbnails, and you have to set it so that Windows can display them. An easy way to do it is by the following setting in Adobe Acrobat Reader DC:






Back to my initial point, I want a list of Windows 10 officially supported file types thumbnails, so I can seek solutions for those Windows does not support.

 

Icons-Thumbnails-Folders-Files

Don't know if this helps

Enable or Disable Thumbnail Previews in File Explorer in Windows 10


Is it possible to display icons for Start Menu program list folders?