Installing linux/52/en

Boot from the USB, CD- or DVD-ROM:

• Put boot medium with installer in slot and restart machine.
• At boot, enter the BIOS by pressing F2. Some machines use other keys http://pcsupport.about.com/od/fixtheproblem/ht/accessbios.htm and if you have a Windows 8.1 tablet or device with a UEFI BIOS, then booting to the BIOS no longer works the way it did on classic desktop PCs http://www.makeuseof.com/tag/how-to-access-the-bios-on-a-windows-8-computer/ and once you are in, you have to shut off Secure Boot and Fast Boot in the UEFI or turn UEFI off completely in favour of "Legacy BIOS".
• Set the BIOS to boot from your installation medium, save, and exit.

Booting will continue and if all went well, your first installer screen appears.