I’ve had a surface pro 3 for a long time and it has generally been amazing. But, twice now, I have had to go through an issue where a few parts of the screen totally stop responding.
It happened a year apart or more and I forgot the solution originally, so I’m posting it here!
Points you to this download (From sony.com, so it’s legit) -> https://www.sony.com/electronics/support/downloads/W0009338
You run that sony app, it calibrates in CLI for a minute, then open up your windows 10 touch screen callibrator (you can find that by searching for “touch screen” on your search bar on by the windows logo). Run that, and you should be good!