Recently I bought a Samsung NP550P7C laptop. Today after all wait I decided to reinstall Windows on it. So I copied all the files on to my USB stick and tried to boot into the installation. When I went into BIOS I couldn’t find the USB stick in the boot list. After learning that the BIOS is Aptio I did some Google searches but found nothing.
Solution was simple:
From ‘Advanced’ section disable ‘Fast BIOS Mode’
Go to BIOS options by pressing F2 while on boot. From ‘Advanced’ section disable ‘Fast BIOS Mode’ and select ‘Save Changes and Reset’ from exit. After reset go back into BIOS and select the USB stick from boot override.