It's easy to change the icon size on a Windows 10 PC for files, folders, or applications using the View menu in your files ...
Windows: If you've put off tweaking the size of your desktop icons because you assumed it would be a pain, it's time to enjoy some hassle-free resizing without digging in menus or replacing icon packs ...
You can change nearly any desktop icon on both Mac and PC using the “Get Info” menu or the “Properties” menu.