Here is how you can change how the folder thumbnails in Windows 11 look. A neat third-party tool and a custom set of icons allow changing the default view and enlarge file previews.

Apple makes it easy to change icons for files and folders on Mac. Here's how it works, along with tips on using images or changing the folder icon color.

Some apps come preinstalled with extra icons that you can use. Most don’t, so you’ll have to find custom icon files online, put them all in a folder, and then individually change the app icons.

You can change nearly any desktop icon on both Mac and PC. To change desktop icons on a Mac, open the "Get Info" menu and paste in the picture you want to use. On a PC you'll need to make a .ICO ...