X-Rite i1Display Studio calibration tutorial – Desktop screens

This tutorial discusses using the X-Rite i1Display Studio to calibrate most desktop screens – that is, screens which have buttons and menus to control contrast, brightness and colour.
(These instructions also work for the X-Rite ColorMunki Display device.)
Before you begin, please make sure you’ve read this article.
Read it? Great, let's go!