update I completely uninstalled Zbrush, then reinstalled it as administrator... uninstalled CC3 pipeline then reinstalled it.. I launched Zbrush as administrator and tried installing Goz for CC3.. again it failed. BUT! This time with Zbrush completely being reinstalled as Administrator and the CC3 pipeline files too, I manually copied over the Goz install files from Users\Public\Pixologic\GoZApps\CharacterCreator to the character creator folder in Program Files\Reallusion\Character Creator 3\Resource\ICGoZBrush\CharacterCreator (Replace all the existing files with admin permissions. And finally Goz is working between the programs!