Installing And Configuring Windows Server 2012 ... Link

Always back up existing data, especially for infrastructure servers like DHCP . 2. The Installation Process

Insert your DVD or USB and adjust the BIOS/UEFI boot order to prioritize the installation media.

Crucial Step: You must choose between (command-line only) and Server with a GUI . Installing and Configuring Windows Server 2012 ...

Set a complex administrator password once the system reboots.

512 MB RAM (minimum), though 2 GB or more is standard. Always back up existing data, especially for infrastructure

Before starting, ensure your hardware meets the Microsoft Recommended requirements: 1.4 GHz 64-bit (2 GHz or faster recommended).

32 GB minimum; use GPT partitioning for disks larger than 2 TB. Always back up existing data

Choose your language, time format, and keyboard layout. Choose Edition: Select between Standard or Datacenter .