Set the zoom level in Magnifier
Magnifier can display objects on the screen up to sixteen times larger than actual size. Follow these steps to choose the magnification level that you want.
Open Magnifier by clicking the Start button , clicking All Programs, clicking Accessories, clicking Ease of Access, and then clicking Magnifier.
In the Scale Factor list, select a level. The zoom level in the Magnifier window will change right away. Adjust the level until it's right for you.