I have four HDD`s in my system and one Samsung 840 EVO SSD. The SSD with win 7 on stopped booting and I have installed Win 10 on another drive which boots up fine. I installed Samsung Magician to erase the SSD in the hope of moving 10 to that.I selected safe erase made a bootable USB as per instructions and made USB bootable in bios. It boots and then says bad command SEGUI0.exe. When I hit the ? key that command does not seem to be a command in the available commands. I know that the SSD shows because it is available in the boot menu. I searched online for Samsung Magician support and found nothing. Anyone help?