Forces the game into Windowed mode during the loading phase . It removes the “exclusive” lock, allowing you to multitask. It does not speed up compilation, but it prevents the system from freezing.
Blizzard designed the exclusive phase to trade off a one‑time longer startup for consistent in‑game performance, especially on mechanical hard drives. starcraft 2 preparing game data exclusive
Alternatively, ensure they both match your preferred native language exactly. Forces the game into Windowed mode during the loading phase