All Customizations to Default User Profile Lost
You set the CopyProfile property to TRUE in an unattended .XML answer file and run sysprep.exe using the steps in Microsoft Knowledge base article KB973289 to copy the customizations in the current user profile to the Default User profile for a computer running Windows Vista or later. However, you find that the customizations (e.g background desktop, desktop shortcuts, screensaver, etc.) do not appear when you log on as a new user after running sysprep.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2101557.