How to fix unknown icons on Taskbar on Windows 11

The Windows 11 does not recognize some icons on taskbar. As we can see in the pic below I have the Google Chrome and I don't know what to do to fix it. When I pin it on the taskbar, sometimes it recognizes but when I unpin it, it just lost and never work for opened programs. It also happen sometimes with other programs like Visual Studio Code (Microsoft).

It adds confusion when I have lots of programs open, forcing me to hover over each window preview with the mouse and verify it is the program I am looking for.

Researching about it, I found some suggestions on changing a random the Windows Registry entry, and I tried, but after one day, the problem came back.

How can I fix the icons?

The Windows 11 does not recognize some icons on taskbar. As we can see in the pic bellow I have the Google Chrome and I don't know what to do to fix it. When I pin it on the taskbar, sometimes it recognizes but when I unpin it, it just lost and never work for opened programs.

Windows 11 works entirely differently than Windows 10 in terms of Task Bar and Launcher (Start Menu) and Windows 10 behaviour cannot natively be retrofitted to Windows 11, at least not at this point. Who knows what the future holds.

The Windows 11 does not recognize some icons on taskbar

So far as I know, in a properly operating Windows 11 System, all icons related to installed apps are known. It is possible there is a an installation error or other error, but if all is working all icons are known.

You can try replacing the icon on the task bar to see if that fixes the issue. Unpin, restart, Pin and check.

On my Windows 11 Production machine (and Insider for that matter), all icons that I put on the Task Bar are recognized. There are no icons that do not function.

All that you need is in Windows 11 and I have tried to portray some snap shots showing how to use Windows 11.

To see what the icon is requires hovering over it and there are different ways the icon will appear upon hovering.

Simple icons show the app label. For example, right now my File Explorer is closed and I just see File Explorer when I hover.

If the app is active (Chromium Edge is active right now), then I see a Thumbnail of the app. (Similar to what you saw for Chrome).

when I unpin it, it just lost and never work for opened programs

I do not think Apps are lost forever. If you unpin the App, then it remains in the Launcher (Start Menu). I have apps that are not pinned to the Task Bar - I just find them in the launcher (which I have set a little bit like the Windows 10 Start Menu).

Open Start and if the icon you want is not there, click on All Apps. Your installed app will surely be there.

You can also put Apps on the actual Start Menu (Launcher) and arrange most used apps to the main Launcher Screen. I use this all the time. Start, select app.

I have put apps not on my desktop but frequently used here.

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So overall Windows 11 is just a very different way of working and all that you installed is easily available to you - just in a different way.