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How to Fix Protruding Folder Icons and Restore Thumbnails in Windows

Maira MehtabMaira Mehtab Oct 8, 2026 869 views

Question details

Users need to restore normal folder-content thumbnail previews when Windows displays protruding custom icons in the Pictures directory.

How to Fix Protruding Folder Icons in Windows Pictures View
Product
Windows
Device & OS
Windows
Scenario
Browsing the Pictures directory and expecting to see image thumbnails generated on the folders.
Observed behavior
Folders display a protruding or custom icon, disabling the normal preview behavior of the folder's image contents.
Before you start

Ensure you have the necessary permissions to modify folder properties and verify that the folder actually contains image files before attempting to restore previews.

Solution 1Recommended

Restore the Default Folder Icon

Resetting the folder icon to its default state restores the Windows capability to preview the folder's image contents.

A custom folder icon can override and disable the normal folder preview behavior in Windows. By reverting to the default icon, the system will start generating content thumbnails again.

1
Open Folder Properties

Right-click the affected folder in your Pictures directory and select Properties from the context menu.

2
Navigate to Customize Tab

In the Properties window, click on the Customize tab located at the top of the dialog box.

3
Restore Default Icon

Under the Folder icons section, click the Restore Default button to remove any applied custom icons.

4
Apply and Verify

Click Apply and OK to save your changes. Reopen the Pictures folder or change the view to large thumbnails to check if the image previews have returned.

Restore the Default Folder Icon
Clear Thumbnail Cache: If previews still do not appear after restoring the default icon, you may need to clear your Windows thumbnail cache using the Disk Cleanup tool to force Windows to regenerate the images.
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Frequently Asked Questions

Why did my folder stop showing image thumbnails?

This usually happens when a custom folder icon is applied manually or by a third-party app. A custom icon overrides the default Windows behavior of generating a preview based on the files stored inside the folder.

Will restoring the default icon delete the images inside my folder?

No, restoring the default folder icon only resets the visual appearance of the folder in File Explorer. It is perfectly safe and does not affect or delete any files stored inside.

What should I do if restoring the default icon doesn't bring back previews?

If the issue persists, your thumbnail cache might be corrupted. You can fix this by running the built-in Windows Disk Cleanup tool, checking the 'Thumbnails' option, and clicking OK to clear the cache. Windows will then generate fresh previews.

How can I apply this fix to all my picture folders at once?

To reset the view for all folders, open File Explorer, click on View, go to Options, select the View tab, and click 'Reset Folders'. This applies the default view settings globally, which often resolves widespread preview issues.