A. Windows 7 has a new full-screen magnifier mode that is accessed by pressing the Windows key and the plus (+) key. Pressing this combination once turns on 200 percent magnification and pressing it again goes to 300 percent, then 400 percent, and so on. To zoom out, press the Windows key and the minus (-) key. You can change the mode of the magnification from full screen to a portion of the screen or a docked bar of magnification, as shown in the pictures below.

Magnifier in Dock mode:

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Magnifier in Lens mode:

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Magnifier in full screen mode:

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