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After Latest MS Windows 11 Update, I Can NO LONGER Set Custom Icons - Please HELP

FH-9913 40 Reputation points
2026-06-17T19:38:04.3833333+00:00

FIRST, I'm not sure if this is the right place to ask this question. If it is NOT, could someone please give a link to where I can ask this and, hopefully, get an answer. THANKS!

SO, there were several updates for Windows 11 a few days ago. (I am writing this on June 17, 2026.)

Since then, many, but not all, of the custom icons I use on my computer (and I literally have made over 600 of them, though some are decades old and I no longer use them) have disappeared from use and I just have the some image in the folder instead for an icon.

I tried changing the icons for these folders, but it does not work. All I get is the image in the folder look. I've tried this multiple times in multiple folders with multiple icons -- and it no longer works. Even when I select one of MS own icon designs, my icon will NOT change to it.

Are other people who use custom icons having this problem. Does Microsoft KNOW that there latest updates caused this problem? Will MS put out an update to correct this -- or HOW can I correct this myself?!

I have a lot of folders in some folders and I really depend on my custom icons to help me spot the one I want quickly.

Just for the heck of it:

custon icon X350

I really want my custom icons back!

Please HELP!

THANKS!

**

Windows for home | Windows 11 | Display and graphics
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  1. Lychee-Ng 21,920 Reputation points Microsoft External Staff Moderator
    2026-06-18T10:03:00.7733333+00:00

    Hi FH-9913,

    I can understand how frustrating this must be, especially after spending so much time creating and organizing hundreds of custom folder icons. The timing does seem suspicious, but unfortunately, at this point there hasn’t been any official confirmation that this is a build regression yet.

    Since Microsoft Q&A is just a peer-support forum, if you suspect the issue is tied to a recent update, it’d be better to report it through Feedback Hub (press Win + F). That way, Microsoft can track whether multiple users are reporting the same behavior. In the meantime, let’s see if we can improve the situation:

    1 - Rebuild the icon cache:

    • Open Command Prompt as Administrator.
    • Run the following commands one by one:
      • taskkill /f /im explorer.exe
      • del /a /q "%localappdata%\IconCache.db"
      • del /a /f /q "%localappdata%\Microsoft\Windows\Explorer\iconcache*"
      • start explorer.exe
    • Restart the PC and check your icons again.

    2 - Rebuild the thumbnail cache

    • Find and open Disk Cleanup as Administrator
    • Select your system drive > check Thumbnails > OK
    • Let Windows remove the cache > restart your PC after.

    3 - Check whether icon files are being blocked

    • Go to the original folders holding the icon files
    • Right-click one of the affected > select Properties
    • If you see an Unblock option, select > click Apply.

    4 - Test if the updates were the cause

    • Open Settings > Windows Update > Update history
    • Identify the most recent update(s) and whether the timing matches.
    • Click Uninstall updates > see if you can uninstall them > check the icons again.

    It’d also be helpful if you can test creating a new folder and assign it a built-in Windows icon. If even the system's own icons cannot be applied to that new folder, the problem might be even deeper.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

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  2. AI answer

    2026-06-17T19:38:24.99+00:00

    Windows supports custom icons in two main ways, and the recent update likely affected one of them:

    1. Per-folder customization via desktop.ini (what File Explorer uses for custom folder icons).
    2. System‑wide icon associations (file types, drives, and some shell items) via the registry.

    The context confirms that:

    • Default folder icons themselves cannot be changed globally, only via shortcuts or per‑folder customization.
    • System icon behavior (taskbar, file types, drives) is controlled by the shell’s icon system and AppUserModel identity.

    Given that:

    • If the folder icon shows only a thumbnail of the folder contents instead of the custom icon, Windows is no longer applying the folder’s custom icon metadata. That metadata is stored in desktop.ini and/or in the folder’s attributes.
    • Updates can reset or invalidate some shell caches and associations, which can make existing customizations stop displaying until they are reapplied or rebuilt.

    From the available information, the supported, non‑destructive options are:

    1. Reapply custom icons using supported methods
      • For individual folders, use the standard folder customization dialog so Windows rewrites the folder’s metadata:
        • Right‑click the folder → Properties → Customize → Change Icon → pick the desired icon → OK → OK.
      • If that does not work for a given folder, create a shortcut to the folder and customize the shortcut’s icon instead:
        • Right‑click the folder → Create shortcut.
        • Right‑click the new shortcut → Properties → Change Icon → choose the icon → OK → OK.
        • This works because, as documented, shortcuts can always have their icon changed even when the default folder icon cannot.
    2. Use shortcuts as a workaround when folder icons cannot be changed
      • The documentation explicitly states that the default folder icon in Windows Explorer cannot be customized directly, but a shortcut to the folder can:
        • Create a shortcut to each important folder.
        • Assign the custom icon to the shortcut as above.
      • Place these shortcuts in a dedicated location (for example, a “Custom Icons” folder or on the desktop) to preserve the visual workflow.
    3. For developers or advanced customization scenarios
      • If custom icons were applied via file‑type or drive associations, re‑registering those associations using the documented shell APIs and registry patterns may be required.
      • The shell documentation describes how to:
        • Assign custom icons to file types.
        • Assign custom icons and labels to drive letters.
      • These approaches are stable across updates because they follow the supported shell model.

    If the problem persists even when trying to change the icon on a newly created folder or shortcut using built‑in Windows icons, this indicates a deeper shell/profile issue introduced by the update. In that case, using the supported customization mechanisms (shortcuts, file‑type associations, drive‑icon associations) is the reliable path until an update or repair of Windows restores normal folder‑icon behavior.

    References:

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