Resolved Question

Large and Extra Large Thumbnails

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?

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Reply to: Large and Extra Large Thumbnails
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Best Answer

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Here's a thing. What are jpg's associated with?
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That worked!

many thanks, that worked!!

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Thanks for sticking with it.

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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Did you try Ctrl + Mouse scroll wheel?
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Large and Extra large Thumbnails

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

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.


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Still have problem

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?

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

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