Pictures in picture file were JPG andnow are JFIF and cant upload

Robert Karpenko 0 Reputation points
2026-03-02T03:56:59.02+00:00

If my pictures were were saved to my picture file as JPG and I had no problem uploading them to For Sale Postings , then why since microsoft Windows recently did an upgrade my saved as pictures are now JFIF , which either won't or can't be uploaded to those For Sale Postings , and also even though the pictures can be found in the picture file is just opening up that file , when I click a picture Icon on the For sale Posting , the picture I chose that is now JFIF doesn't even show up within the picture file ? I didn't ask for this to happen , of which you were in control of , so why can't you fix it , and let me go back to what I had , instead of me trying to fix it on my own when I am not Tech Savvy and can't understand what I have to do which is beyond my comprehension ? You broke it , why can't you fix it ? Lastly , why is it that microsoft doesn't believe in the thought that if it isn't broken then you don't needto fix it ?

Thank You

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  1. AI answer

    2026-03-02T03:57:10.11+00:00

    Windows can change how JPEG images are handled after certain updates, but this does not change the actual image quality. A JPEG image can legitimately use either the .jpg or .jpeg extension; changing between them only affects the file name, not the picture itself.

    If a site only accepts .jpg files and the images now appear as another extension (for example, .jfif or .jpeg), the usual workaround is to save or rename them with a .jpg extension so the site recognizes them. The image data remains the same; only the extension changes.

    In Outlook for Mac, for example, when saving a .jpg attachment, a prompt may appear offering to save it as .jpeg. Choosing that option simply changes the extension to .jpeg without affecting image quality or usability as a JPEG file.

    If a specific website or app does not show or accept these files after the extension change, the issue is with that site’s upload filter not recognizing all valid JPEG extensions. In that case, saving or renaming the files to .jpg before uploading is required so the site will list and accept them.

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  2. Kal-D 7,375 Reputation points Microsoft External Staff Moderator
    2026-03-02T19:14:20.6833333+00:00

    Hi Robert Karpenko,

    Welcome to Microsoft Q&A.

    After a Windows update, your photos didn’t “turn into a different kind of picture”, in most cases they’re still JPEG images, but Windows (or the app you downloaded/saved them from) is now giving them the .JFIF file extension. Some websites (including For Sale platforms) only accept .JPG/.JPEG, and the upload window may also be filtering to show only those file types. That’s why your .JFIF files may not appear when you browse for them.

    What to do

    1. Show file extensions, then rename .JFIF to .JPG
    • File Explorer > View > Show > File name extensions (so you can see “.jfif”).
    • Right-click the photo > Rename > change filename.jfif to filename.jpg > Enter.
    1. If the file picker doesn’t show your pictures
    • In the upload/browse window, change the file type dropdown to All files (.) or All pictures so .JFIF isn’t hidden by the filter.
    1. If you want Windows to open these normally
    • Settings > Apps > Default apps > search .jfif / .jpg / .jpeg and set your preferred app.

    Notes

    • Renaming .jfif > .jpg does not reduce quality (it’s usually just the extension).
    • If the files are coming from Teams/Downloads, that can also be why they save as .JFIF—renaming or saving a JPEG copy resolves the upload compatibility issue.

    Note: These steps are safe to follow and will restore upload compatibility. While I can't make changes remotely, the instructions above should resolve the issue quickly

    I know this is incredibly frustrating, especially because you didn't ask for this change. While I cannot physically fix your computer for you, following the steps in this version you just wrote will solve the problem for the photos you have right now.

    Please let me know if this proves useful to you, or if you would like further assistance.

    I'm looking forward to your reply.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment”.   

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    1 person found this answer helpful.
  3. Pete 0 Reputation points
    2026-04-23T01:04:20.6033333+00:00

    Why? I mean……. Why? .jpg is Standard. Windows and Outlook are ubiquitous. Why create the grief? “Change the extension” as a solution is not very helpful and causes more work for the user. What is the utility of .jfif over .jpg that justifies this intrusive and persistent annoyance?

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    4 people found this answer helpful.

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