[ANSERED] How Portable HDD To Install From?

WinToFlash utility after you install boot disk ISO file with portable. but the problem is that, as the license acceptance screen, keyboard layout selection, I canceled screens, DVD doesn't go away when I boot from. just the way I like it. but when I boot from removable disk it never feels like unedited with WinReducer.
NOTE: USB flash memory as the same time booting from the DVD boot works fine. the only problem is, the portable HDD from the arrangements remain invalid while booting.

Hello,

Could you please explain a little bit more, because I'm not sure to correctly understand your question !     

Thank you.