I've re-re-reinstalled Server using ArcGIS_Enterprise_Builder_Windows_1061_164003.iso. It usually manages to go through without error, which is shocking enough. However, now it's forcing me to upgrade after the install process, with no option to cancel. This it then of course fails to accomplish, looping back to the optionless upgrade prompt, only to fail again. How do I stop this "upgrade"? The failure message isn't exactly useful either.