If you’re ever using Windows 10 to present to a group and they are having trouble reading your text.
Experts recommend a minimum text height of 1 inch (25 mm) for every 15 feet (4.5 m) between the screen and the most distant viewing position in the room.
Luckily, this is easy to do on the fly by pressing <Windows> + <+> to zoom in on the part of the screen with the mouse cursor (just for fun, say “Computer, Enhance” when you do this to wow your audience).
The default zoom amount can be changed in settings, and conveniently pressing <Windows> + <-> will zoom back out.
This is also a handy tool to know about if you ever need to look at something with precision – such as the detailed alignment of pixels on a screen or the alignment of walls in an architectural drawing.