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Resolved Question

Large and Extra Large Thumbnails

Aug 29, 2017 10:15AM PDT

I have a problem with Large and Extra Large thumbnails of photos not showing. Medium thumbnails show fine. But when I switch to Large or Extra Large, they flash as thumbnails, then revert to the mountain scene.

I've done the two solutions mentioned elsewhere - I've unchecked the box in Control panel, Folder Options "Always show icons, never thumbnails" and I've deleted my Thumbnail cache several times using Disk Cleanup. But the problem remains.

I actually think the problem started when I ran Windows Cleanup, but I'm not sure.

What else can I do?

Discussion is locked

JLo59 has chosen the best answer to their question. View answer

Best Answer

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Here's a thing. What are jpg's associated with?
Aug 29, 2017 2:18PM PDT
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That worked!
Aug 29, 2017 2:55PM PDT

many thanks, that worked!!

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Thanks for sticking with it.
Aug 29, 2017 3:00PM PDT

We have to start with most common and work our way to less common.

What I hope you carry away here is how associations play a role here.

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Answer
Did you try Ctrl + Mouse scroll wheel?
Aug 29, 2017 11:00AM PDT
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Large and Extra large Thumbnails
Aug 29, 2017 12:17PM PDT

I hadn't tried scrolling + mouse wheel, but I just did and it's the same behavior as before: they start out as the mountain icon, and stay that way until they get about 75% smaller, when the actual thumbnail image appears. The thumbnails that appear are the same size as when I select "Medium" icons on the dropdown.

What I still find strange is that the actual image thumbnails flash for a second before the window refreshes and are replaced with the mountain scene icon.

Thanks for the idea, though - any others out there?

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I've Seen This On NAS Drives Before
Aug 29, 2017 12:51PM PDT

If you're seeing the problem when viewing the pictures on Network Attached Storage drives, (a drive on the network that isn't local), then the normal fix is to delete the "thumbs.db" file which resides on the NAS drive. You may need to perform the deletion by making the file visible ( in Folder Options "Show hidden files and folders" and Unhide" Protected Operating System files), take "Ownership" of the files, or temporarily shut down Windows Explorer.

Hope this helps.

Grif

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Still have problem
Aug 29, 2017 1:27PM PDT

The photos are actually in my Pictures library on my c: drive.

I've deleted every thumbs.db file I could find in my Pictures folder (I use Everything, so I can see them) and restarted - but still have the same problem. Is there another database somewhere else?

Interestingly, it's only jpg's that show this behavior - pdf thumbnail previews are an actual image.

My screen resolution is 1920 x 1080 - and hasn't changed in years. This thumbnail issue only started 2 weeks ago....

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Is this PC one of those High DPI displays?
Aug 29, 2017 1:22PM PDT

There is an enduring bug with W7 and High DPI displays. I have yet to read of a fix.