How to Increase and Decrease the Size of the Desktop Icons
https://www.computersprofessor.com/2017/06/how-to-increase-and-decrease-size-of.html
Quickly increase and decrease the size of Desktop Icons:
In
Windows Vista and later versions of Windows, while on the Desktop, hold
down the Ctrl
key and scroll up and down using the wheel on your mouse.
When
scrolling up, all the icons on the desktop will increase in size. When
scrolling down, all the icons will decrease in size.
While
you hold down Ctrl, icon text will increase or decrease in
size when scrolling
up or down with the mouse wheel.