The document provides steps for installing Windows 2012 r2 Server:
1) Configure the BIOS and change the boot device priority to boot from the installation media first.
2) Boot from the installation media and select the language and install options.
3) Complete the installation process by creating partitions, setting passwords, and accepting license agreements.
4) Upon completion, the server can be logged into and the installation of Windows 2012 r2 Server is finished.