I have done that but unfortunately Windows Photo Viewer only has 4x6 and I want 5x7. That's why I'm using the Windows 10 built in photo app. It does have 5x7 but I can't seem to get it to print 2...

How do I Print 2 5x7 pictures on one sheet of 8x10 paper? I want to print the same photo twice on a single sheet.
It worked before but now I can't figure out how to set it up

Ok, I got it fixed now. Turns out the program defaults and file associations were not set up properly. Thanks for the help.

Using HP Photosmart C4600 printer/OEM Windows 10/ Windows Photo Viewer.
When I try to print a photo I get the error message: "Windows can't find this picture".