I’m trying the option to change the package.xml file to change the architecture to 64 bit only by adding
<target-platform arch=”x86_64″ os=”linux” ws=”gtk”/>
<target-platform arch=”x86″ os=”macosx” ws=”cocoa”/>
<target-platform arch=”x86_64″ os=”win32″ ws=”win32″/>
in between </workspace-tasks> and </package> tags like you said. I go to the admin console, click on the right changed package, click commit, click okay. I then promote it and click the button to build the installers. Once it’s finished I go to the delivery hub, click on the package to install, run the installer, then when I get to the Choose Architecture, it still shows both 32 bit and 64 bit versions available. Do I need to restart the delivery hub first for the changes to take effect and if so how do I do that?