Once you have downloaded a pack (usually around 1.5GB to 2GB), follow these steps:

Start the game. If the main menu is still foreign, go to Options → Language (even if untranslatable, look for the flag icon or the word “English”). Select it, restart the game.

| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Audio still plays in the old language after changing to English | Language files not fully downloaded or cache still pointing to old assets. | Close the game and the client (Ubisoft Connect/Steam). Delete the languagecache folder (usually under Documents\Assassin's Creed Brotherhood). Relaunch the client and let it re‑download the English files. | | Subtitles remain in the previous language | Subtitles are stored separately in the Data\Lang folder; only the UI language changed. | Verify that the english sub‑folder exists under Data\Lang. If missing, reinstall the language pack via the client or run the official language patch again. | | Game crashes on launch after switching languages | Corrupted or partially written language files. | Run a “Verify integrity of game files” (Steam) or “Repair” (Ubisoft Connect). This forces the client to replace any damaged files. | | Console version shows foreign text | Console system language set to another language. | Change the console’s system language to English in the console settings, then restart the console. | | Missing voice‑over for certain missions | Patch version mismatch (e.g., using an older language pack with a newer game patch). | Ensure both the game and language pack are at the same version (e.g., 1.2.2). Update the game via the client, then reinstall the language pack. |

Most guides miss this. You must manually tell the game to use English.

Alternatively, download a ready-made registry fix (search for “ACB English Registry.reg”) that sets HKEY_LOCAL_MACHINE\SOFTWARE\Ubisoft\Assassin's Creed Brotherhood\Language to 1033 (English US).

Fix: Ensure the Videos/en/ folder exists. Download the missing Bink Video speech tracks from a separate pack – some light repacks removed them entirely. You can also copy the en folder from a complete Steam version.