http://blogs.technet.com/mniehaus/archive/2009/06/27/mdt-2010-new-feature-7-boot-image-creation-optimized.aspxWith MDT 2008, there were two actions in Deployment Workbench:  “Update” and “Update (files only)”.  With MDT 2010, there is now only one called “Update Deployment Share”.  This action’s purpose is to generate the Windows PE boot imagesen-USCommunityServer 2.1 SP1 (Build: 61025.2)