: Choose between "Full Installation" (Standard/Enterprise) for a graphical interface or "Server Core" for a command-line-only footprint.
: Use the Initial Configuration Tasks window to set the computer name, configure networking, and activate your license. Core Management Tasks Windows Server 2008 R2 Tutorial
: After installing roles (like DNS or DHCP), run the Best Practices Analyzer (BPA) from Server Manager to identify security or performance misconfigurations. 512 MB RAM
Once installed, most administrative work happens through or specific administrative tools. Windows Server 2008 R2 Tutorial
To get a 2008 R2 environment up and running, you must meet the minimum hardware requirements: a 1.4 GHz x86-64 processor, 512 MB RAM, and 32 GB of disk space.
: Boot from your installation media and follow the prompts to select your language and keyboard layout.