Just downloaded and installed 1.2.79 over existing 1.2.76. Noticed during install that it failed to start services. Rebooted and started GW, but same outcome - can’t start services.
Uninstalled 1.2.79 and reinstalled 1.2.76 which runs fine.
That seems to have done the trick. I have lost all my history, but the program is running. Will see how it does with the “run on startup” problem when the next scheduled reboot takes place in a couple of days.