Windows 10 icons. Where are they located? In which files and folders? | Digital Citizen
Whether you want to change the default icon of a certain folder or the icon of a shortcut you have created, you might wonder where you could find new icons. While there are lots of websites that offer custom made icon sets, you might, however, prefer to use icons that are already found on your Windows 10 computer or device.
https://www.digitalcitizen.life/where-find-most-windows-10s-native-icons