When I contact Adobe, I get software experts who get onto my computer and spend about 20 minutes forcing an update, usually removing dozens of files and leaving me with no operating catalog. It's the same for the next update.
These experts don't fix some underlying problem that prevents the update system working properly on my Windows 10 PC. Is there anything I can do to to fix this situation?
Was there another or different error?
A program like Mcaffee puts its feelers into so many places in the OS, that I wouldn't be certain that just turning it off might solve the problem. I uninstalled Mcaffee and Malwarebytes previously with time still on my licence because I don't trust them to be beneficial. In your shoes, I would uninstall Mcaffee; you can always reinstall it if the uninstall doesn't solve your problem.
Due to this, my machine has no way of updating to the new version of LR...
The CC app shows version 18.104.22.168, and registers as the latest version.
macOS Sierra 10.12.6 withe latest known version of the CC app