The Visual-Guide Show Step-by-Step How-to Easy Installing a Linux Debian 7 Wheezy 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 Article Bottom you Find also As a Bonus Link to How-to Create an App Launcher on Linux Debian Desktops.
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Win8 How-to Disable Secure Boot and Enable Booting from CD/DVD:
Boot from Debian Installation Media
Select Graphical Install
Select a Language
Select your Location
Configure the Keyboard
Set the Host
Set the Domain
Choose a Mirror for Debian archive
Set Up Users and Passwords
Configure the Clock
Debian Best Partitioning for Preservation and Performance
Debian Expert-Partitioning SetupWait Until the Installation is Achieved :)
How-to Create an Application Launcher for Quick-Starting on Debian: