Hi Steve,
It's not clear from your message, but I get the impression that you are trying to apply FrameMaker 2017 update 1 to an existing FrameMaker 2015 installation. That won't work because FrameMaker installations are stand-alone and there is no update process that switches you from FM 2015 to FM 2017 - that's a good thing and means it is possible to have several FM versions co-existing on the same computer.
Please download the FrameMaker 2017 installer from here FrameMaker 2017 download then apply the latest update which will get you directly to FrameMaker 2017 update 4.
If I misunderstood and you have already downloaded FrameMaker 2017 you can check for updates from the help menu. No need to apply each update in turn.
Ian