Windows 10: How to change Thumbnail Folder icon in windows 10

hello;

i have changed folder icons using registry edit, and it worked. But when i change folder view option from small to large, it shows default icon. So is there any way to change thumbnail folder icon ?

For reference i am posting below screenshots to further clear my point. as you can see in left side i have changed default folder color to BLUE FOLDER, but Folder thumbnail icons in right side are still set to default.





:)

 

Windows 10 File Explorer Preview Thumnails

Windows 10 has changed the way the thumbnail previews in file folders look when the thumbnail previews option is enabled. In this version of Windows, the thumbnail images have been magnified compared to how they were in previous versions. So, the hundreds
of images that I set up to display as a thumbnail in a folder are now cropped on all sides. I spent hundreds of hours adding various small icons to the edges of the images that I set up to use as folder previews, and now those icons are not visible in the
thumbnails.

So here's my question: Is there a way that I can change the way Windows 10 displays the preview thumbnails back to the way it has been for at least the last 3 versions of windows?

I've tried Classic Shell, but that does not change the format. I've also tried several aftermarket file explorer type programs, and apps, but they just default to the same new "zoomed in" format. I tried making the images smaller, but no matter how small
I make them, file explorer still zooms in and crops off the edges of the image when displaying them in the folder icon.

 

Customised folder pics reverting back to default?

This could be many reasons.

If you are just putting files into a folder and the folder shows thumbnail preview and then later is show default folder image

then it is probably because Windows 10 deletes your thumbnail cache when it reaches about 500MB.

You can in the properties>Customize

use a photo (jpg etc) to display that folder view

you can select an icon and use that for folder display

Note Icons and thumbnails are different and have separate caches to store them.

But you say it shows a thumbnail view and when putting in new item into that folder, the folder view goes back to default view.

That is a bit odd if the case

Maybe rebuild your thumb nail and icon caches

download and run tool, it works good

Thumbnail and Icon Cache Rebuilder for Windows 10

and disable auto deleting of your thumbnail cache. and increase icon cache

Stop Windows 10 Auto Deleting Thumbnail Cache "Updated"

Usually your folder will show 2 items on the thumbnail and usually after adding more items into that folder, the view will not change

go into folder options>view tab and make sure the first box is unchecked. Apply - Apply to folders - OK

 

I think you will find those images are in imageres.dll.

For example, having changed resources in that programmatically
(i.e. can be easily reproduced when imageres.dll is replaced by SFC /SCANNOW , and upgrade or upgrade repair or DISM command)
I have

 

thanks for the response.

but how to do it? is it user friendly and safe method?

 

I used Icon changer:
Damian's Homepage
- comes with a library of some 77 Win 7 icons, including e.g. My computer (This PC) and the Recycle Bin e.g.

You can construct your own icon library.
It creates a new version of imageres.dll - the program is meant to replace the old one by pressing a button, but I never got that to work and had to replace the dll manually.