You can change your computer display settings by rotating your computer display screen. Right-mouse-click under window desktop and then Display settings and then under display settings find drop down option of Display Orientation. Choose between Landscape, portrait, Landscape (inverted) or portrait (inverted). Once one is picked the screen will automatically turn around and the switch will be checked. It is an advantage when it is vertical monitor configurations, coding interfaces, reading documents or to counter in case the monitor stands can be changed and revolved.