Windows 10: Suddenly only some image files display thumbnails while most do not

Heya, my system used to show virtually all images with a thumbnail, but for some reason most now just display as a blank file icon. I've checked my settings in File Explorer Options and cleared my thumbnail cache, and nothing has been installed recently. Even in directories that used to show everything via thumbnail now show just around a quarter of them correctly. I get the feeling something is mucked up with a DLL somehow, but that's only a guess. Any thoughts on what I can do to fix this?

:)

 

JPG Thumbnails of vertical JPG images are displayed as horizontal imag

Suddenly, vertical JPG images show thumbnail images squeezed into horizontal thumbnail JPGs. RAW files are not affected and show vertical thumbnails as expected.

I do have Sagethumbs installed, so that I can see JPG thumbnail images of PSD and TIFF files. No problems with thumbnail images from PSD and TIFF files.

I uninstalled Sagethumbs and the problem persisted. So I don;'t think Sagethumbs is the problem.

I have cleared the (File Explorer?) thumbnail cache and the Sagethumbs thumbnail cache and the problem persists.

The problem occurs only in one image folder.

Any ideas?

Example:

 

Image thumbnails are not displaying

I recently started using my Windows 10 laptop again and after updating it I noticed all the image files no longer display the thumbnails. The image thumbnails are replaced by blue mountains. The other Icons display properly. I checked the defaults and
have photos selected.

 

Displaying Thumbnails for .jpg files in Windows 10 File Explorer

For some reason I cannot get File Explorer in Windows 10 to display thumbnails of my .jpg files. That makes scanning through hundreds of photos very tedious. I am using a desktop, a standard display monitor, manual keyboard, and mouse -- no touch screen.

I have done everything I have found on-line to no avail. Those efforts include:

• Going to Folder Options and ensuring that "Always show icons, never thumbnails" is unchecked...no change was necessary.
• Making sure "Large Icons" are selected in the picture toolbar View tab
• Clearing thumbnail cache as described on-line
• And everything else which I no longer remember.

Some observations:

• A few of my photos do display as thumbnails, e.g., 1 or 2 in a folder of dozens, but the majority are just the large icon.
  
• As one would expect, there are different icons for photos and videos.
• Sometimes, but not always, if I open a photo, it will then display as a thumbnail.
  
• In the folders where I have the photos saved, there is frequently a file labeled thumbs.db.
• Occasionally, as I open a folder holding photos, for the "blink of an eye" thumbnails will display before the photos become icons.

Another curious observation is that when I attempt to change (rename) a file from a name with upper case letters to lower case, the change does not display after hitting enter, e.g., IMG_1234.JPG renamed as img_1234.jpg. The displayed file name below the
icon stays in uppercase, but if I select "rename", it displays in lower case, but hitting enter still displays it in uppercase. This appears to be the case for all files, not just photos. Probably has nothing to do with the issue, but is curious nonetheless.

I am seeking any new suggestions as I am at my wit's end.

TIA,

Bill