Multiple monitors overview
Windows makes it possible for you to increase your work productivity by expanding the size of your desktop Connecting up to ten individual monitors, you can create a desktop large enough to hold numerous programs or windows.
You can easily work on more than one task at a time by moving items from one monitor to another or stretching them across numerous monitors. Edit images or text on one monitor while viewing Web activity on another. Or you can open multiple pages of a single, long document and drag them across several monitors to easily view the layout of text and graphics. You could also stretch a Microsoft Excel spreadsheet across two monitors so you can view numerous columns without scrolling.
One monitor serves as the primary display and will hold the logon dialog box when you start your computer. In addition, most programs will display windows on the primary monitor when you initially open them. Different screen resolutions and different color quality settings can be selected for each monitor. Multiple monitors can be connected to individual graphics adapters or to a single adapter that supports multiple outputs.
Use Display in Control Panel to configure the settings for multiple monitors.
On many portable computers and some desktop computers (those with two video ports on one video card), you can expand your display to a second monitor by using Dualview. Dualview is very similar to the multiple monitor feature, with the exception that you cannot select the primary display. On a portable computer, the primary monitor is always the LCD display screen. On a desktop computer, it is the monitor attached to the first video out port.
Once you attach the second monitor and turn on your computer, use Display in Control Panel to configure your settings, just as you do with multiple monitors. Dualview can be used with docked or undocked portable computers.