Sometimes, the size of the font on your computer may be too small or too hard to see because of problems with the scaling of the display on higher resolution screens. Fortunately, with Windows 10, you can customize the text to your liking.
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How to resize text
When the only problem you face is having difficulty navigating through text size Windows and zooming in or out of text are all you have to do. This applies to title bars, menus, icon text and some other elements.
Start the app settings by pressing Win + I and then clicking the "Usability" category.
The The "Display" tab on the left is selected by default. In the "Make Text Bigger" section, move the bar to the right until the sample text is easy to read, and then click "Apply."
Windows immediately increases the size of all text
It's All So Big
If you've made text bigger, but still have trouble seeing things on your screen, you can try to make things bigger. This scales everything in the UI, including text, fonts, and apps. This includes all UWP (Universal Windows Platform) and desktop apps
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In Settings> Usability> Displayed in the pane " Make everything bigger ", you can select a scaling percentage from the drop-down menu.
You may need to sign out and get back in to make some changes to certain apps. but it should apply immediately for most things.
To return to the default size, go back to Settings> Usability> Display and choose the Recommended setting from the drop-down menu.