How to Add a Zoom Button to Your Taskbar

Add Zoom to Taskbar
1. Click the Windows 7 Start button, and type 'Magnifier' (without the quotation marks) in the search box at the bottom of the Start menu. The 'Magnifier' icon appears at the top of the search results list.
2. Left-click 'Magnifier,' and hold down your left mouse button. Drag the icon from the Start menu to your taskbar. Windows pins it there.
3. Click the magnifier. The magnifier window opens. Click the 'Plus' sign to zoom in on the screen. Click the 'Minus' sign to zoom out. By default, each click zooms the screen or make it smaller by 100 percent.
4. Click the icon shaped like a gear. The magnifier options window opens. This window has a slider that allows you to control how much the screen view changes when you click the 'Plus' and 'Minus' buttons.
5. Drag the slider to the left if you wish to make the zoom increment smaller. Drag it to the right to increase the increment. For instance, to cause each click to zoom in or out by 150 percent instead of 100 percent, drag the slider to the right. As you drag the slider, the current increment appears below the slider.
6. Click 'OK' to set the increment value. Clicking 'OK' closes the 'Magnifier Options' window and returns you to the main magnifier window.
Set Zoom Options
7. Click the arrow next to the 'Views' drop-down list in the magnifier window. Three options appear that allow you to determine how the tool magnifies the screen.
8. Click the 'Full Screen' option if you want each click to zoom the entire screen. To zoom only a portion of the screen, click the 'Lens' option instead. When you choose this option, Windows magnifies the area around your mouse cursor.
9. Click the 'Docked' option if you do not wish to use the previous two options. After activating the 'Docked' option, you can choose the portion of the screen you wish to magnify. This option comes in handy when part of the screen displays small text and the other part does not.