Cannot Set Photoshop CC 2017 to Default Program
Hello! I wasn't able to find a similar question to help me, so hopefully asking one will help resolve this issue.
I have 3, Windows 7, computers running the latest CC 2017 programs. Illustrator and InDesign work fine.
Photoshop, however, has lost its ability to open files from the file window. I can only open files in photoshop by going File > Open, in Photoshop itself.
I have tried to set Photoshop to be the default program for opening various image files, but the program does not appear in the Default program section of Windows. As such, I have tried to go in through the File window and select photoshop to open from there (See Image)

I am able to find photoshop CC 2017 from the "Choose default program..." option seen in the image above, however, when I click to confirm, the window closes and nothing happens. The file does not open at all, and photoshop does not appear in the "Open With" set of programs.
I hope that someone can assist with this, as it is disrupting the workflow of all three computers.
Thanks!

