Under orientation click the down arrow at the edge of the box.
Windows vertical screen.
To change your screen s orientation from vertical to horizontal if you are using an amd gpu you need to.
Select start settings system display and choose a screen orientation from the drop down list labelled orientation.
Select the monitor whose orientation you d like to change.
Press the windows key type display settings and then press enter.
Locate the orientation option under resolution click the dropdown menu under it and then choose your preferred screen orientation landscape portrait landscape flipped or portrait flipped.
Click on catalyst control center to launch it.
A window should open similar to the one shown below.
Windows 7 8 and 10.
While holding the windows key win key if you press the left or right arrow key the window that is currently focused will be moved to the left or right portion of the screen respectively.
In windows 7 and 8 this can be accessed by right clicking on the desktop and selecting screen resolution.
Right click on an empty space on your desktop.
In windows vista select personalization and then click the display settings option.
In windows xp select properties and then click the settings tab.