Windows 8 How-to Enable Boot from CD/DVD Visual Steps

Windows 8 Settings

Windows 8 Pc Settings

Windows 8 Settings General Advanced StartUp

Windows 8 Settings Troubleshoot

Windows 8 Advanced Options

Windows 8 Modify Uefi Firmware

Windows 8 Uefi Firmware Re-Boot

Disable Secure Boot
Windows 8 Uefi Firmware Re-Boot

Launch CSM -> Always + 1St Boot Device -> DVD
Windows 8 Uefi Firmware Re-Boot

F10 to Save and Boot

Now You Should be Finally Able to Escape from Window8 Jail! 🙂