With the latest release of the beta version of SteamOS, Valve threw themselves into the operating system market. SteamOS is based on the Debian Linux distribution, and has received a lot of enter to become a great gaming platform. We decided to put together a guide to install the SteamOS, so you can try it yourself.
Before you start installing the new operating system on your machine, you must ensure that you meet the minimum hardware requirements:
Intel or AMD processor
4 GB of RAM or more
500 GB or larger hard drive
Nvidia video card (Intel and AMD States the Valve will come soon)
UEFI boot support
USB port for installation
4 GB flash drive or larger
Don't forget that the install SteamOS like installing another OS – it will reformat your hard drive and erase all your data.
Prepare a Bootable Flash Drive with SteamOS Installer
Note: the instructions below are for Windows 7