@pax1sw - The Launcher login and data display issues you are having can most often be solved by clearing the cache (history) and cookies on Internet Explorer, being sure to de-select the option to Preserve Favorites Website Data. For a visual: https://kb.wisc.edu/page.php?id=15141
It must be IE, even if you never use that as a browser yourself or don't have convenient access to it (Win 10) and have to root around to find it as the game still and always will use its resources. Not Edge, Chrome, Firefox, or the other browsers. Although it wouldn't hurt to try clearing the cache and cookies on those, it's usually IE that does it.
The OP here was having potential drive space issues where they had Windows installed and got serious relief by disallowing UAC as they said. EA isn't exactly killing off TS3, but time does move forward and those on Win 10 or with the newest of hardware, graphics card drivers, systems updates, etc., are running a 2009 game on 2018 (or something similar) systems and it does take some extra care and feeding to keep an older game like this one that has been officially out of development for four years now going.
