Installed VTScadaLight on a Windows 10 machine. When trying to launch the application, immediately get error message "Setup Terminated." "Failed to retrieve unique machine identifier."

This is a new message to us. Try running the installer as administrator...just the installer. Let us know how that goes.

I uninstalled it, then re-installed as Administrator. (Thought I did the first time, but apparently not.) That fixed it. Thanks.

Great! Thanks for letting us know.