Re: Windows 10 Default App/Program Problem
As crazyman143 mentioned, I would try clicking Start > Settings > System > Default apps tab
Under Photo viewer, change that to "Windows Photo Viewer"
If that doesn't work;
I'm guessing you've tried the Windows "Refresh" option?
Me: You'd think as the dominant species we wouldn't be so effing stupid.
J: We're just intelligent enough to be completely effing stupid.