I apologise for being very late to this, but it may help someone if they are still searching for answers, as I have been today.

I had exactly the same issue that Margaret above shows in the vid.

The answer is to change the Windows / System / Display settings to 1920 x 1080 (in my case) and keep size of text, apps, and other items to 100%.

If you have custom settings that greys out these changes, then you need to allow Windows to log you out first to make these changes.

If you are also running Windows under VMWare Fusion, as I do, then you also need to change the Display settings in Fusion to uncheck ‘Use full resolution for Retina display’, otherwise after a minute or so it bounces you back to the automatic setting, which is back to exactly what Margaret shows above in the video.

With this sorted, my LT 2017 on Windows 10 looks exactly the same as my old LT 2010 on Windows 7 did.

Hope that helps someone.