System Hardening / Secure Configurations - Windows Threat & Countermeasures Guide
If you have to to do Windows Security/Hardening this is a MUST have reference.
Security Settings in Windows Server 2003 and Windows XP / Server 2008 R2 and Windows 7
The Threats and Countermeasures guide provides you with a reference to all security settings that provide countermeasures for specific threats against current versions of the Microsoft® Windows® operating systems.
Windows XP/Server 2003 -
http://www.microsoft.com/downloads/details.aspx?FamilyId=1B6ACF93-147A-4481-9346-F93A4081EEA8&displaylang=en
Windows 7/Server 2008 -
http://www.microsoft.com/en-us/download/details.aspx?id=26137
Security Settings in Windows Server 2003 and Windows XP / Server 2008 R2 and Windows 7
The Threats and Countermeasures guide provides you with a reference to all security settings that provide countermeasures for specific threats against current versions of the Microsoft® Windows® operating systems.
Windows XP/Server 2003 -
http://www.microsoft.com/downloads/details.aspx?FamilyId=1B6ACF93-147A-4481-9346-F93A4081EEA8&displaylang=en
Windows 7/Server 2008 -
http://www.microsoft.com/en-us/download/details.aspx?id=26137