Windows 10: Photos won't open Winows 11 "Class Not Registred"

I had to restore my PC from a previous back up and now my photo files will not open. It gives me a "class not registered" error. I have no idea how to fix this.

:)

 

Windows won`t open an program when using Microsoft user

Windows won`t open an program when I try to open it with Microsoft account user, but when I login with local account, that program opens. I have tried with 2 Microsoft accounts, 1 admin and 1 normal user, and it won`t open in either one of them. What can cause this?

***Moved from Windows / Windows 11 / Tilit, profiilit ja kirjautuminen***

 

Class not registered error when opening photos

Hi,

Thank you for posting in Microsoft Community.

Please answer these questions to assist you better.

• When you say "This time I click a PNG file. If I fix it using the method above. If I click a JPG next time. Am I needed to to that again?" are you referring to perform DISM again.
• What do you mean When you say "I am afraid, the /restorehealth will cause another issues to my computer"?
• How do you want to open Photos eg Photo app or Paint?

I suggest you to set the default program and check if that helps. Follow the Steps below.

Steps:-

• • • 
      Go to Control Panel from Start.
      
    • 
      Select Set Default Programs.
      
    • 
      Click on Photo app or Paint.
      
    • 
      Select “Set this program as Default Program”
      

Hope this information is helpful. Please do let us know if you need further assistance, we’ll be glad to assist you.

 

windows 10 apps won,t open

Hi Robert,

Thanks for posting your query on Microsoft Community.

We appreciate you for trying the troubleshooting steps.



I suggest you to try the below steps and check if it helps.

Step 1: Run Windows app troubleshooter.

Refer to the below link:

Fix problems with apps from Microsoft Store - Microsoft Support

Step 2: Run shell commands for Windows store and check if it helps.

Follow the below steps:

• 
  Press Windows key + X and select
  Command prompt(Admin) to open elevated Command prompt.
  
• 
  Type the following commands.
  
  
  
  powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\WinStore\AppxManifest.xml
  
• 
  Hit enter, the blackscreen will appear still for a couple of seconds. After a couple of second a new line saying C:\.... will appear.
  
• 
  Close Command Prompt.
  
• 
  Try to start the Windows Store again.
  

Hope it helps, reply to us with the status of your issue. We will be happy to assist you.