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In the Multiple displays list, click Extend these displays. Windows 8: Right-click the Windows Start button, click Control Panel > Display > Adjust resolution. Above that check box, in the Multiple displays list, select Extend these displays. Ensure that the check box named Make this my main display is selected. Select screen 1 in the diagram, then scroll downward. If you are connected to a project, typically it will be represented in the diagram as screen 2. At the top, under Customize your display, is a diagram of the screens connected to your computer, with each screen numbered. Windows 10: Click Start > Settings > System > Display. Notes: If the display settings don't open, do the following:
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