If you are looking for a free toll tat allows you to change the icons of your drives in Windows 8 or Windows 7, then this post will interest you. You can change the Icons of your Windows Drives easily using freeware Drive Icon Changer or My Drive Icon.
Change Windows 8 Drive Icons
Simply select the Drive whose Icon you want to change, click on Install button which opens a Icon select window.
Select the Icon which you want to use and click Install.
Now open the Computer to see the icon.
To Uninstall the icon, select the Drive & click on Uninstall.
Download Page : DeviantArt.
There is another utility called My Drive Icon.
It allows you to change the Drive Icon as well as the Drive label.