Windows 10: most of my images are jfifs

hellomost of my images are jfifs and all images i download are saved as jfifsive read that the solution has something to do with messing registry keys, which apparently is a sensitive thing to do and might mess up my computer, and so that's something im reeeally not looking forward to doing, so i came here with hope that theres another way. if not, how do i go about solving this?

:)

 

.jpg vs .jfif extension

In the last few months, every windows update changes the registry setting for saving jpeg images from .jpg to .jfif. Why is this continually changing even after I change the registry setting back to .jpg?

As a side note, the image I am saving is NOT a .jfif file and I do not have the option to save as a .jpg from the file save window. Only after changing the registry setting back to .jpg am I able to save with a .jpg extension.

 

[HELP]Image recovery issues

Guys i am trying to fix my cousins Asus Eee netbook. It has a backup image file that is partitioned on the hard drive but when I go to use it the app will run through a few steps and stop. It is running Vista . Any suggestions?

 

.jpg vs .jfif extension

These are being saved from a web page and Microsoft edge browser.

However saving the file is not what is changing the registry setting. The following setting is what is being changed after an update to windows

Computer\HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg

A search of the registry finds several .jfif entries but setting the one referenced above allows the image to be saved with the .jpg extension as it did in the past.