UPDATE: Worked long enough to load and update; would not load after reboot again!!!
Finally found the culprit!!! NOT!!!
Between the time I took my old machine down and booted up the new one there was an update to RazerTartarus V2 keypad that loaded a program call Razer Cortex System and Game Booster. I don’t remember ever loading these but one of them boost’s or modify’s the system cache file.
As soon as I killed those from loading and rebooted, MSFS was good to go, except I had already uninstalled and reinstalled the sim. Yes, it has been updating for hours now!
Hopefully I can engage my data on a separate drive at some point.
Rick S.