The last install before I gave up, I turned off AV, ran exe as administrator using Clean install, Remove contents of DLC cache and Reset the game settings and clean up the cache. I run the game from a separate SSD from the OS SSD but find that shouldn't be the problem since the file is to be written to C:\ users\*?*\AppData\Wargaming.net\ by default and that's still the correct location. I would attach the logs if I could figure out how.