If you have installed the DLC or language pack only to find missing voices, mixed languages (e.g., Portuguese menus with English audio), or the game crashing on launch, you are not alone. This long-form guide will walk you through every possible fix, from simple Steam settings to manual registry edits.
On consoles, the language pack is often a separate "add-on" in the digital store. thewitcher3wildhuntportuguesebrazillanguagepack fix
For advanced users, some code fixes have been proposed: If you have installed the DLC or language
If Steam’s language tab fails: