I have only seen this an extremely long time ago when I was using win7 and had a 10" netbook and that was a resolution issue.
On my very old 10" for some scans I bumped the screen resolution up so I could see it, and access buttons.
But I don't think this is the issue now, though, but the fact that the UI screen can't be resized doesn't help.
However, you particular issue is this file scan popup is also in a fixed location bottom right and can't be moved. What happens when you click the See Details ?
Other than this issue with scanning a file does everything else display normally ?
What is the laptop screen size and resolution ?
I'm using a 1080P 15.6" laptop connected to a 27" monitor with a greater screen resolution 2650, x 1440. Switching back to the laptop screen only the size is very small.