Fix: Class not registered in Explorer.exe on Windows 10 (solved) –

If you’re trying to open an app or image/photo on Windows 10 and you’re getting an “Explorer.exe: Class not registered” error, proceed below to resolve the issue. A “class not registered” error usually indicates an unregistered DLL file that is required for the program to function properly.

A DLL (Dynamic-link library) file is a file that contains code and data that can be used by multiple programs at the same time, helping to reduce code and memory usage.

How to fix: Explorer.exe class not registered error on Windows 10.

Important: Before trying the following methods, try the following:

press CTRL+SHIFT+ESC To open the task manager. go to Start up tab and select and Delete Any applications that should not load when Windows starts. (e.g. iCloud, Spotify, etc.). Once done, restart your computer and see if the problem persists.


Method 1. Uninstall the latest updates.

If you get a “Class not registered” error after installing updates in Windows 10, go ahead and uninstall the installed updates.

1. go to Start > Settings > Update and securityy > Windows update.
press View update history.

Uninstall the Windows 10 update

3. select the Security Update for Microsoft Windows (KB5000802) and press Delete.

Uninstall KB5000802 Windows 10

4. After the shutdown restart go to your computer and see if the problem persists.

Method 2. Restore default apps.

1. go to Start image > Settings > Applications.
Choose Standard applications on the left and then click Reinstall

Restore Windows 10 default apps

3. Then click Select default applications by file type.

Specify Windows 10 default applications by file type

4. On this screen, make sure the .JPEG and .JPG files are open with the Photos app.


Method 3. Fix Windows corruption errors using DISM and SFC tools.

1. Open command prompt as administrator. For this:

1. Enter the following in the search field: cmd or command line

2. right click on it command line (result) and select Run as administrator.

command line administrator

2. In the Command Prompt window, type the following command and press Enter:

  • Dism.exe /Online /Cleanup-Image /Restorehealth

dism health recovery windows 10 8 7

3. Please be patient while DISM fixes the component store. After the operation is complete (you should be notified that the corruption in the component store has been fixed), issue this command and press Enter:

sfc scan now windows 10-8

4. Once the SFC scan is complete, restart your computer.
5. After restarting, check if the “Class not registered” error is resolved.

Method 4. Uninstall and reinstall the Photos app.

If the Windows 10 Photos app doesn’t work, proceed to completely remove the Photos app from Windows 10 and then reinstall it. For this:

1. Type in the search field powershell

* Note: In Windows 8/8.1, click: Windows image + S Buttons to open and type in the search field powershell.


2. Right click Windows PowerShell scroll to the results and select Run as administrator.

windows 10 powershell

3. To uninstall the Photos app in PowerShell, issue the following command:

  • Get-AppxPackage *Microsoft.Windows.Photos* | Uninstall – AppxPackage

Uninstall the Windows 10 Pictures app

4. Close PowerShell.
5. Finally, open the Microsoft Store to download and install the Photos app. For this:

1. Enter the following in the search field of the Microsoft Store: Pictures and click on the Microsoft Photos app.

Install the Windows 10 Photos app

2. Click on Take it Click the button to reinstall the Photos app on your system

image repair app won't open windows 10

That’s it! Which method worked for you?
Let me know if this guide helped you by leaving a comment about your experience. Please like and share this guide to help others.

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