Windows 10: Class not registered on Windows defaults

I have the class not registered error whenever I try to open Groove music, Photos, and other default Windows apps that come with the computer. My the far right part of my taskbar (with desktop button) as well as by Start and Cortana buttons are defunct. I have run sfc/scannow in an Admin CMD and it couldn't repair some of the "corrupt files," so I ran DISM (in Admin CMD and Admin Powershell) which stopped at around the 83% mark before telling me no operation was performed.


I ran that code that supposedly re-registers all your .dll files (because some quick research informed me that class not registered means that Windows couldn't match the file to the app) and got CMD spamming file names and a stack of error messages on my desktop. Please help me. I do not want to have to perform a fresh start.


Extra info:

• I have run sfc and DISM in safe mode as well as normal mode
• I have an HP Notebook C: Drive 915GB
• I have owned this laptop for more than a year
• The problem has persisted for a few months at most

Please help me. Thank you.

:)

 

class not registered

Hi Sheila,

The error Class Not Registered may affect many applications. It can be due to changed changes on the Default apps. We'd like to ask the following to help us out on this:

• Can you elaborate the troubleshooting steps that you've done so far?
• Are you able to tell us when did this happened and how long is this ongoing?
• Were there any newly installed applications or updates applied on the device?
• Do you have another user account we can use on your device?
  

 

"class not registered" error

Hi Eddie,

For better assistance, are you getting the error with this specific file only?

We suggest checking this thread to resolve the "Class not Registered"
error.

We're looking forward to your reply.

 

"Class Not Registered" Windows 10 when trying to open jpg

Hi Teresa,

The error “class not registered” may occur if there are any Windows files are not properly registered, damaged, missing in Windows.
To better isolate your concern, we'd like to gather more information:

• Have you made any recent changes before this issue occur?
• Does this happen only to .jpg files?

Meanwhile, we suggest that you follow the steps in this
article. It will let you also scan for corruptions and provide remedy.

Keep us posted if you need additional help.