Solution:

Story: As we know, external SCSI/SATA controller driver must be loaded by pressing "F6" while O.S is installed. However, some machine doesn't equip 1.44" FDD. How we can install SATA/SCSI driver? Solution: Please prepare a USB FDD then choose "None" within BIOS for Drive A option. Usually, default setting of this option will be "1.44M FDD" but this may cause confilct wihle both 1.44" and USB floopy exist. After modifying this setting then re-install Windows, you can acess floppy by USB-FDD.