Installing and Configuring Devices
To change your screen resolution, Displaying More on Your Monitor
In Control Panel, under Appearance and Personalization, click the Adjust screen resolution task.
In the Display Settings dialog box, drag the Resolution slider to the setting you want, and then click Apply.
In the Display Settings message box that appears, click Yes.
To configure your computer to display your Windows desktop across two monitors, Configuring Your System for Multiple Monitors
In Control Panel, under Appearance and Personalization, click the Adjust screen resolution task.
In the preview area, click Monitor 2, select the Extend my Windows desktop onto this monitor check box, and then click Apply.
In the Display Settings message box that appears, ...
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