After the latest Windows 11 update in June, a surprising bug affected many users: their folder icons suddenly disappeared or changed appearance. Don’t panic, the folders are still there, but Windows has changed how it displays customizations. This change addresses security concerns, a crucial point to understand in order to regain control of your environment.
Windows 11: Disappearance of custom icons, a security choice
The June 2026 Patch Tuesday for Windows 11 caused this seemingly minor issue. It stems from a change in File Explorer’s behavior. In short, Windows now refuses to apply folder customizations if they don’t originate from a source deemed trustworthy.
This results in a return to the classic yellow icon and the folder’s actual name. No files are lost, just a more neutral display to avoid any risk.
The main reason? The interface uses an old configuration file, the desktop.iniwhich may contain instructions to change icons, names, or tooltips. Problem: some files of this nature can be used as attack vectors if they originate from the internet or dubious network locations.
The role of the desktop.ini file and the associated risks
Windows automatically reads this small hidden file to customize folder display. It contains settings like IconResource and LocalizedResourceName. As long as the file is considered trustworthy, everything works normally.
However, if the desktop.ini file originates from a risky location, such as a WebDAV server, a remote share, or an unidentified internet source, Windows blocks these customizations. This prevents your folders from becoming entry points for malicious code.
This marking is called the Mark of the Web (MotW), which tells Windows to apply specific restrictions to enhance security.
How to restore your icons and folder customization in Windows 11
Fortunately, Microsoft has provided several solutions to restore normal display, using methods adapted to avoid compromising system security.
Here are the most common options:
- Trust the source: via the Internet OptionsYou can add the network share address to the list of trusted sites. Windows will then reapply the customizations to these folders.
- Use a system strategy: In the Group Policy Editor, it is possible to allow the use of remote paths in icons. This method restores the previous behavior but should be used with caution.
- Remove the brand from the web: If you are sure of the origin of the desktop.ini files, a simple PowerShell script can remove the MotW so that they are considered trustworthy.
Guide to adding a trusted site in Windows 11
To do this, open the Start menu and type Internet OptionsIn the Security tab, select Trusted sitesthen click on Sites to add the address. This can be the URL of an internal server or an official network share.
This method is more secure because it does not unlock all sources, but specifically targets those recognized by you.
Why does Windows classify certain paths as untrusted?
Protocols like WebDAV or HTTP are considered risky because they access files via web connections, often external or difficult to authenticate properly.
Windows then applies a zone logic, similar to the mechanisms inherited from Internet Explorer, to differentiate between intranet, Internet and trusted sites.
However, this can pose a problem for businesses or individuals using network storage services. Hence the importance of adapting the configuration if necessary.
What we can learn from this development
More than just a bug, this disappearance is a strong signal about Microsoft’s tightening of security. The change affects a seemingly minor but revealing element: the display of folders.
This update reinforces the idea that even configuration files should be checked to prevent vulnerabilities. This will certainly impact your user experience, but it will protect your system.
To quickly return to a familiar display, the following links will guide you effectively: Solutions to recover your missing icons And explanations about the Microsoft fix.
What exactly is the purpose of the desktop.ini file?
This hidden file allows you to customize the display of folders with icons, localized names or tooltips without changing the folder’s contents.
What is the Mark of the Web and why does Windows block it?
The Mark of the Web is a marking indicating that a file comes from the Internet or an untrusted source in order to apply restrictions to strengthen security.
How can I trust a network location to restore my icons?
Add the share or server address to the list of trusted sites via Internet Options in Windows 11.
Can I remove the Mark of the Web from my desktop.ini files?
Yes, via PowerShell, but this action must be targeted and safe, as it removes a layer of protection against potential threats.
Why do some folders appear with a generic icon?
Windows blocks the application of customizations for folders whose desktop.ini file is marked as untrusted or comes from a network path deemed risky.
Source: www.clubic.com