This is the fastest way to get a custom size. Click on an empty part of the desktop, then hold the Ctrl key while scrolling your mouse wheel up (to enlarge) or down (to shrink).
If you want to change the size of everything (text, apps, and icons): change the size of icons on desktop
Windows offers several ways to adjust your desktop view, whether you want a tiny, organized grid or large, easy-to-see icons. Right-click any empty space on your desktop. Hover over View . This is the fastest way to get a custom size
Sometimes a minimal, small-icon look just feels cleaner! whether you want a tiny
Apple handles desktop customization through "View Options," which allows for more granular control over spacing and text size as well. adjust desktop icon size - Apple Support Community