Just installed latest patches for the 2021 AEC package which installed correctly. I noted one older update for Revit Infraworks Updater of 2021. After hitting [UPDATE] program returns Fatal Error 1603 - insufficient HD space for temporary files or Windows Installer not running. 1. Have 65Gb free space on HD and Windows Installer is running but is on manual. Have worked through the 1603 Read Me file and followed, but still get same failure.
Archlight