More information about Magnifier from support.microsoft.com:
Magnifier is a tool that enlarges part—or all—of your screen so you can see words and images better. It comes with a few different settings, so use it the way that suits you best.
To open Magnifier on a keyboard, press the Windows logo key and + (plus sign). To open it by touch or mouse, go to Start , then Settings > Ease of Access > Magnifier, and then move the slider under Magnifier to turn it on.
Magnifier opens in full-screen view unless you change the settings.
To exit Magnifier, press the Windows logo key + Esc or select the magnifying glass icon , and then select the Close button on the Magnifier toolbar.
Change Magnifier views
With a mouse, you can use Magnifier in three different view: full-screen, lens, or docked. Try them all to find out which one you prefer.
In full-screen view, your entire screen is magnified. You probably won’t be able to see the whole screen at the same time when it’s magnified, but as you move your mouse around the screen, you can see everything. If you have a touchscreen, Magnifier will display white borders around the edge of your screen. Drag your finger or mouse along the borders to move around the screen.
In lens view, when you move around the screen, it’s like moving a magnifying glass around.
Docked view works on the desktop. In this view, a magnifier is docked to a portion of your screen. As you move around the screen, parts of the screen appear magnified in the docking area, even though the main part of the screen is unchanged.
Change the way Magnifier works by using the zoom buttons (
) to enlarge or reduce your screen. Or press the Windows logo key and + (plus sign) or the Windows logo key and – (minus sign) to zoom in and out.
- Open the Magnifier options button
to make changes to the level of zoom, color, or focus.
- Press the Windows logo key and + (plus sign) to open Magnifier.
- On the desktop, select the Magnifying glass icon , and then select the Options button
- Do one or more of the following:
- Use the slider to choose a zoom increment. The percentage you choose here will be the increment by which Magnifier enlarges the screen when you press the Zoom in button
- Select Turn on color inversion to reverse colors on the screen. Sometimes reversing colors can make text easier to read.
- Select a check box to choose how Magnifier focuses. Magnifier can follow your mouse, the insertion point, or the keyboard.Note
When you open Magnifier, the Magnifier toolbar appears briefly. It quickly gets out of your way, but you can display it again by clicking the magnifying glass icon on your screen or the Magnifier icon on the taskbar.
Use Magnifier with a touchscreen
Perform a variety of tasks on a touchscreen with Magnifier:
- Zoom in and out by tapping on the corners.
- Move around the screen by dragging along the borders.
- See where you are on the screen by tapping with two fingers on opposite borders.
- Exit Magnifier by tapping the Close button.