XYplorer Beta Club

Thanks. Have checked the registry keys you suggested and they're all fine. Both .jpg and .jpeg are included in the Local Machine settings for Image Eye and the Classes Root is set as Image Eye too.

Problem SOLVED!! After some more Googling, I happened to come accross a small utility called "File Association Fixer" . Downloaded it (it's portable so no installation needed) and just set it to fix the .jpg extension and voila! I got the "How Do You Want To Open This File" dialogue at first, but selected Image Eye and tick the default box. Now it opens correctly every time in both XY and File Explorer. I guess there must have been a corruption somewhere in the registry. Thanks to everyone for their help. File Association Fixer can be found here:

http://www.thewindowsclub.com/file-asso ... ows-10-8-7