Photoshop 2020 error - can't see the "file" "edit" etc. buttons, and the program cannot function

Hi,
I need help with my photoshop software.
As seen above, it doesn't seem to show up on my screen properly. There are no "file" "edit" etc. tabs, also no "x" for closing the program or shrinking the window in the top right hand corner.
I don't have this problem with lightroom.

I've uninstalled all versions of PS that I had, as well as LR and re-installed everything from the web, and no change.
What do I do next to resolve this?
Thanks!