Windows 10: How to fix thumbnail preview for .dng files not loading?

system info - OS Name Microsoft Windows 11 Home Version 10.0.22000 Build 22000 I have a lot of .dng and .arw files. When I open my folders the thumbnails will not load automatically. The only way I see a thumbnail is if I open the file in the photos app and close it. It will not load all files, just that specific one Ive opened. I have been trying to fix this for 2 weeks and went through every solution online. I have reset windows explorer settings, show thumbnails instead of icons, scanned for malware, deleted thumbnail cache, run multiple scans and reset the photos app. It is very frustratin

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How to fix thumbnail preview for .dng files not loading?

system info -

OS Name Microsoft Windows 11 Home

Version 10.0.22000 Build 22000

I have a lot of .dng and .arw files. When I open my folders the thumbnails will not load automatically. The only way I see a thumbnail is if I open the file in the photos app and close it. It will not load all files, just that specific one Ive opened.

I have been trying to fix this for 2 weeks and went through every solution online. I have reset windows explorer settings, show thumbnails instead of icons, scanned for malware, deleted thumbnail cache, run multiple scans and reset the photos app.

It is very frustrating trying to view 400+ files with no thumbnail available.

 

.DNG files in Windows 10 (2018 update)

So, I'm having problems opening .DNG files from my Leica on my windows surface pro 3 running windows 10 1803. Double clicking on the file opens the Windows Photo app, and you see a brief flash of the "full size" photo then it ends up with what looks like
a low resolution thumbnail. Zooming on the final opened picture ends up with a very blurry photo.

Resetting the app (settings->apps->apps and features->advanced->reset) shows the blurry photo fit to the window (instead of a tiny thumbnail) but then when you close or double click on a .DNG again, it goes back to the previous issue, which means you see
a flash of the photo fitted to the app window, then it scales down to a thumbnail. At no point do you ever see a high resolution photo.

Opening the file (35MB) in Adobe Photoshop express or Lightroom gives you the high resolution photo.

Clearly, there's an issue with handling the .DNG file from the camera with the photo app. The only current solution is to download Adobe's DNG Converter 10.3 (available here: https://supportdownloads.adobe.com/detail.jsp?ftpID=6321) then "convert" the DNGs
to a DNG with a JPG preview, but this removes the ability to preview the photo in file explorer with the "large icons" setting. You see a regular photo file extension style icon, but if you double click, the file will come up in windows photo with a high
resolution photo.

Bottom line, how can I get *both* features? I'd like to get the preview of the photo in file explorer *and* high resolution photo in Microsoft photo. Or, should we just abandon the Microsoft photo app? Any suggestions?

 

Preview and thumbnails of pdf files are not available

Hi Michelle, my name is Martin and I'm an Independent Advisor. I'll try to help you here.

Preview and Thumbnails of PDF files can be disabled on your PC . . .

I suggest that you follow steps below to enable this feature

Start Adobe Reader

Tap on Edit in the menu bar and select Preferences

Under Categories highlight General

Put the checkmark next to the box Enable PDF thumbnail previews in Windows Explorer

I also recommend the article - Enable thumbnail of PDFs in Windows Explorer to get further information

https://helpx.adobe.com/acrobat/using/enable-pd...