I restarted and it installed the miracast and high definition codecs, but would not install the Tegra driver or codec. Even going to the device manager and trying the update automatically would result in an error message saying the device could not properly be configured.
I'm not sure where the 8/14 versions came from, maybe as part of the automatic driver update attempt, or were never deleted from when I told it to delete drivers. Either way it would not let me install the new drivers, even selecting them manually, until after the 8/14 drivers had been installed for either the device or the codec.