When you connect an additional monitor to your computer, the Start button and taskbar are located by default on the primary display—typically, your computer display. If you want the Start button and taskbar to appear on a different display, you must designate that display as the primary display.
To designate the primary display
1.
Open Display Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.
2.
On the Monitor tab, click Identify Monitors.
The display that is identified by the number "1" is the primary display.
3.
Click the numbered icon that represents the display that you want to designate as the primary display, and then select the This is my main monitor check box.
Your displays might not be correctly aligned. Check the display alignment to make sure that the numbered icons that represent the displays are correctly aligned.
To check the display alignment
1.
Open Display Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.
2.
On the Monitor tab, make sure that the numbered icons that represent the displays are aligned the way that you want, either side by side or top to bottom.
If the screen resolution is different for each display, the icons won't be the same size. For example, an icon that represents a display with a 1024 × 768 screen resolution appears larger than an icon that represents a display with a lower resolution, such as 800 × 600.
In this case, the physical arrangement of your displays is the opposite of the virtual arrangement that is represented on the Monitors tab. For example, your primary display is on the left, but when you first set up the displays by using the New Display Detected dialog box, you chose to extend your desktop to the left instead of to the right. For more information, see Set up multiple monitors.
The quickest and simplest way to correct this problem is to switch the location of the numbered icons that represent your displays. Drag the numbered icons to the location you want as demonstrated by the following animation.
Open Display Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.
When you connect an additional monitor for the first time, use the New Display Detected dialog box to choose the way you want your desktop to appear (that is, mirrored, extended, or shown only on the external display). You can change this appearance and other display settings without reconnecting any monitors or returning to the New Display Detected dialog box.
To change a mirrored display to an extended display
1.
Open Display Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.
2.
On the Monitor tab, select the numbered icon that represents the additional monitor that you connected.
If you connected only one additional monitor to your computer, its icon is identified by the number "2."
3.
Select the Extend the desktop onto this monitor check box, and then click OK.
4.
If prompted to keep the current settings, click Yes.
To change an extended display to a mirrored display
The following procedure works only for mobile PCs. If you're using a desktop computer, you may be able to change an extended display to a mirrored display by using the software provided with your video card or display driver.
1.
Open Windows Mobility Center by clicking the Start button , clicking Control Panel, clicking Mobile PC, and then clicking Windows Mobility Center.
2.
On the External Display tile, click Connect display.
3.
On the New Display Detected dialog box, click Mirrored, and then click OK.
Most mobile PCs use FN+F5, FN+F7, or FN+F8 to cycle through the display modes. To determine which function keyboard shortcut you need to use, check the information that came with your mobile PC, or go to the manufacturer's website.
Make sure that the color depth is the same for each display.
NoteCertain color depth settings might not be available on some monitors because of differences in display hardware, electronics, video cards, and drivers. For example, some monitors might be limited to a 16-bit color display.
To set the color depth for a display
1.
Open Display Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.
2.
On the Monitor tab, under Colors, select the value that you want.
The higher the color depth, the more realistic the image will appear on your display.
If the window is maximized, you can't move it until you reduce the window to its smaller (pre-maximized or "restored") size by clicking the Restore Down button.
To move a window to a different display
1.
On the window that you want to move, click the Restore Down button or double-click the title bar to reduce the window to its smaller size.
2.
Click the title bar on the window, and then drag the window to the display that you want it to appear on.
Moving a window from one monitor display to another
Driver
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Driver
Software that enables hardware or devices (such as a printer, mouse, or keyboard) to work with your computer. Every device needs a driver in order for it to work.
Video card
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Video card
A piece of computer hardware that converts electronic information into the text, images, movies, and animations that are displayed on a computer screen. Also called video display adapter, video adapter, or video controller.
Mobile PC
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Mobile PC
A general term that describes laptops, notebook PCs, Tablet PCs, and ultra-mobile PCs. This term does not describe computing devices (such as mobile phones and PDAs) or desktop computers.
Screen resolution
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Screen resolution
The setting that determines how much information is displayed on the computer screen, measured horizontally and vertically in pixels. At lower screen resolutions, such as 640 x 480, fewer items fit on the screen, but they are larger. At higher resolutions, such as 1600 x 1200, more items fit on the screen but they are smaller.
Color depth
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Color depth
The number of color values that can be assigned to a single pixel in an image. Color depth can range from 1 bit (black and white) to 32 bits (over 16.7 million colors).
Help and How-to
