I upgraded from 8.1 core or home or whatever you want to call it to win 10 home. I then did a clean install of win 10. Who knows what happened, it works now though. :D

Ugh, weirdness. I didn't see it at first so I went to the default apps in control panel. Only tiff files were listed as what photo viewer could open. After I set that, I was able to then do your...