A. if you have prepared a separate source HDD, to be safe disconnect any internal PC's bootable HDD . and connect the HDD with Image files .
B. Connect new HDD hard disk that is to be initialized. MAKE sure this HDD is (preferably FAT32) formatted.
C. Connect bootable USB to USB port.
5- Reboot PC. Clonezella will boot PC:
You will see the following,
5.1) Enter to continue