To change your display in Windows 10, select Start > Settings > Ease of Access > Display. To make only the text on your screen larger, adjust the slider under Make text bigger. To make everything larger, including images and apps, choose an option from the drop-down menu under Make everything bigger.

To zoom in or zoom out on parts of your screen in Windows 10, use Magnifier. To turn on Magnifier, press the Windows logo key + Plus (+). Zoom in by continuing to press the Windows logo key + Plus (+). Zoom out by pressing the Windows logo key + Minus (–). To turn off Magnifier, press the Windows logo key + Esc.
Change the size of the selected text
To change the font size of selected text in desktop Excel, PowerPoint, or Word:
- Select the text or cells with the text you want to change. To select all text in a Word document, press Ctrl + A.
- On the Home tab, click the font size in the Font Size box.

You can also type in any size you want, within the following limits:
- Excel: between 1 and 409, between 1 and 409, in multiples of .5 (such as 10.5 or 105.5)
- PowerPoint: between 1 and 3600, in multiples of .1 (such as 10.3 or 105.7)
- Word: between 1 and 1638, in multiples of .5 (such as 10.5 or 105.5)
Tips:
- When you select the text, a mini toolbar appears near your cursor. You can also change the text size in this toolbar.

- You can also click the Increase Font Size or Decrease Font Size (Grow Font and Shrink Font in some earlier versions of Office programs) icons until the size you want is displayed in the Font Size box.
