How to Boot 2nd Gen Zenbook by USB and Install Debian?

I am trying to install Linux Debian 8.5 (dd'ed it successfully to USB stick) on SD card of Zenbook UX303UA. However, Grub is 1 version. I cannot boot from the USB and there exists no menu option for the fetaure in the ultrabook. I accessed the Bios by pressing esc at the login, since it does not start naturally by USB and does not give me a list boot options. I think the USB is at /dev/sdb1 now so one option is to configure Grub directly. Fig. 1 Bios and Boot, Fig. 2 Bios, USB configuration and Advanced Iterating GAD3R's proposal --- Disable successfully *Fastboot* in Bios Boot. Fig. 4 After pressing Esc at login when *Fastboot* disabled*, Fig. (5-7) are about unsuccessfully setting up boot by USB 1. first rename the option as *USB* or whatever, since just name (Fig. 5) 2. it requires the location of the boot there (Fig. 6) 3. I cannot find any other location than the current USB SSD (Fig. 7) Fig. 5 Renaming as *USB* in Boot , Fig. 6 You cannot Enable Legacy Boot for some reason (Why?), Fig. 7-10 You cannot find right location for new boot option I cannot find a way to boot from USB. 2nd Iteration --- I disable *Secure Boot* in Security > Boot. I enable CSM. I press Esc at the login. I get the list of items to boot from. - My test USB works - My Debian installer does not work so this confirms it is faulty. Problem solved! Hardware: Asus Zenbook UX303UA OS: Ubuntu 16.04 64 bit Linux kernel 4.7 Grub: version 1