Addictivetips published a tutorial about how to turn on predictive text on Windows 10.
How to turn on predictive text on Windows 10
Predictive text was first introduced on phones. The feature was useful because it’s harder to type on a smaller device so the fewer buttons a user had to tap, the better. Of course, the feature has proved to be useful beyond a mobile device.
How to turn on predictive text on Windows 10