One interesting thing about this icon pack is that it features both light and dark icons present to easily match with any background wallpaper or theme used on your PC at any time. The icons are attractive and as straightforward as possible which makes them quite easy to adapt to. When it comes to selecting free and easy-to-use folder/app Windows 10 icon packs and for other older Windows OS, Simplus is your best pick. The best thing about this option is that it covers a vast amount of icons and also has a very simply created icon pack. The icons are created with gradients which makes them more colorful and will improve the appearance of your desktop screen. This icon pack is a great option for Windows 10 as you can choose to customize the icon color to fit with the windows 10 OS theme. Topping my list is Lumicon, a well-designed and advanced icon pack covering all popular desktop icons, browsers, and media icons. How do I change folder icons in Windows 10?.How do I download more icons for Windows 10?.How do I restore default icons in Windows 10?.