FDCC meaning in General ?

The Federal Desktop Core Configuration is a list of security settings recommended by the National Institute of Standards and Technology for general-purpose microcomputers that are connected directly to the network of a United States government agency.

The FDCC is a list of agreed upon Microsoft Windows operating system common core system functions, applications, files, and services that are changed in their configuration around which a framework for a more secure, and security-reliable MS Windows operating system was created. The standards were then made mandatory for every federal government computer effective Feb 1, 2008. If you wanted to connect to a federal office computer network your system had to meet or exceed the FDCC standard or you were denied access.

FDCC applied only to Windows XP and Vista desktop and laptop computers and was replaced by the United States Government Configuration Baseline (USGCB), which included settings for Windows 7 and Red Hat Enterprise Linux 5.

For Windows 7, the NIST changed the naming convention to the US Government Computer Baseline (USGCB ver 2.0). In addition to un-classifying a general Windows settings guide, the NIST also publishes guides specifically for Windows Firewall, Internet Explorer, and a guide (Vista-Energy, for example) created to capture settings that adhere to energy conservation policies.