Directly manage site columns, content types, and permissions without opening a browser. Technical Downloads and Requirements
SharePoint Designer 2010 is a web application that enables users to design, customize, and build SharePoint sites and applications. It is a part of the Microsoft SharePoint product family and is designed to work with SharePoint Server 2010 and SharePoint Foundation 2010. sharepoint designer 2010 x64
SharePoint Designer 2010 (SPD 2010) is the specialized editor used to customize SharePoint 2010 sites, manage workflows, and design data-rich pages without writing code. The Architecture Dilemma: x64 vs. x86 Directly manage site columns, content types, and permissions
If you have 32-bit Visio, Outlook, or Excel installed, you must use the 32-bit version of SPD 2010. Directly manage site columns