Windows 10: trying to open a JPEG. Get "Class not registered" How do I fix this

  1.    03 Apr 2016 #1

    trying to open a JPEG. Get "Class not registered" How do I fix this


    I have all updates applied to the Windows 10 Professional x64 bit machine. Started Windows 10 this morning and tried to open a JPEG file, i.e., double click any.jpg. Windows 10 comes back with, "Class not registered".

    Cleaned all the files, registry and nothing changes this. Restarted and checked all in safe mode as well. Went to assign defaults to Windows Photo Viewer and found that it had 2 of its defaults. Clicked make this default. Nothing. Assigned all defaults to the Windows Photo Viewer, hit save. NOTHING SAVED!

    This has nothing to do with Edge or Internet Explorer.

    Any thoughts or suggestions please!
    Last edited by theaudioanalyst; 03 Apr 2016 at 16:48.
      My ComputerSystem Spec

  2.    07 Apr 2016 #2

    Hi, you could try the ideas here - not the command line to reregister dlls.

    Sledgehammer approach:
    an in-place upgrade repair install (instructions in Tutorial section).
    Keeps all, may find the odd association reset to MS default, need to reenter Wifi key, system restore points lost and s. restore turned off.

    Very useful repair technique.

    Needs boot medium of the same major build as your Win 10.
      My ComputerSystem Spec


Related Threads
Hello guys, I don't know what I did, but nothing happens when I click on those two things in the search bar: View image: wtf I reinstalled Windows a few hours ago, and IIRC pressing those with the mouse lead somewhere. Now when I click on...
Hi, I recently upgraded to win 10 from 8.1 and I am running into a few problems. I'll start with this very annoying one and than open a different thread for the others. So I like to save URL links on my desktop - used to work fine on 8.1. Now...
I have removed the Windows 10 "Libraries" from the navigation pane in Windows Explorer and other Microsoft programs (eg. Notepad), but despite an exhaustive internet search I have been unable to discover how to remove Libraries from navigation panes...
I installed Win10 on an old backup PC when I started Beta testing it months ago. During this time, it always showed "Evaluation Preview" on the lower right, but with the first "official" release, that text disappeared. This morning, "Windows...
I do have my WiFi internet working, I can access internet all right. But if I go to Windows 10 Settings and then try to open "Network & Internet", it takes forever and it does not load. While that happens, performance temporarily decreases, even...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 19:14.
Find Us