When you install Windows 10 all system icons are not added to desktop, only the recycle bin is added. You can add other system icons Computer, User Files, Network and Control Panel to Desktop. You can customize the system icon from the Windows alternate list of icons. If you accidentally deleted an icon from desktop you can undo the delete. If you have a nice background image and you don't want the desktop icons get in the way you can remove them from desktop. You can sort the desktop icons by name, size, type and date modified.