The Visual-Guide shows you Step-by-Step How to Easy Installing a Fedora Linux 17 Lxde Desktop on a PC with Windows8 Pre-Installed/Uefi Firmware Disabling Win8 Secure Boot.
The First, Need Step Consists in Disabling the New Windows 8 Secure Boot that Impede the Boot from Installation Media CD/DVD.
The Initial Pre-Installation Step of Preparing the Installation Media CD/DVD for Installation is Skipped if you Need Consult the Online Documentation.
To the Post Bottom you Find also As a Bonus Link to How to Create an App Launcher on Fedora Linux Desktops.

Windows 8 Disabling “Secure Boot” and Enable Boot from CD/DVD:
Win8 CD/DVD Boot SetupBoot from Fedora Installation CD/DVD.
Choose Keyboard Layout.
Set the Device Type.
Confirm Installation Warning.
Set Hostname.
Set Time-Zone.
Set Account Password.
Custom Partitioning.
How to Make a Basic Custom Partioning for Performance on Fedora.
Fedora Custom PartitioningInstalling the Bootloader.
Copy Live Image.
After Installation Reboot.
Article-Installation Setup.
Create an Application Launcher on Fedora GNU/Linux Desktops for Quick Starting: