SevenDriveIconChanger change your Windows 7 Drive Icon easily. You will need an .ico image, you can convert them in web. Don't care about the icon preview, it wont look like that in explorer. Press Browse to choose your icon, select drive, and press Change Icon to change the icon. Pressing "Reset Icon!" will set the drive icon to default. You have to run software as administrator.

The license of this software is Freeware, you can free download and free use this system utility software.