Ah, I see. Well then your problem may be Windows Secure Boot.
Some devices with Windows 8 have a UEFI BIOS which supports Microsoft secure boot process. It is to prevent certain types of malware (or so they say).
If you try to boot a non secure boot enabled OS you will first have to turn off that feature, before the BIOS will transfer control of the hardware to the OS. It is found in the UEFI BIOS.
You can follow this tutorial which can walk you through the process.
http
/tutorialforlinux.com/2013/01/10/windows8-howtodisablesecureboot-bootfromcddvdinstallationmedia/