Cloning a 500GB SEAGATE Hard Disk inside a  MSI GP70 2PE Leopard to a  480 GB SSD by using Clonezilla software.   Bootup the Clonezilla software from a  DVD-RW Player that is built-in inside the  MSI GP70 2PE Leopard   Laptop or from an External DVD-RW Player .  The 480 GB SSD is put inside a   USB External Hard Disk  Casing .  Whatever the reason , using Clonezilla to clone and internal hard disk to an external USB hard disk , IS REALLY SLOW . I believe , there is nothing got to do with Clonezilla . I do not know what is the reason .