I happen to know how one can fix this. Go to Control Panel, then Appearance, then Display, and then change the size of all items to "smaller-100%". This will make the contents of the window the correct size, but unfortunately everything else on your computer will be much smaller (icons, toolbars, text). I personally just put up with the dodgy window size for now since setting the scaling the small makes it hard to see things on my laptop screen.
What I would do is change the sizing just for accepting the EULA, then change it back afterwards.