Try to launch the game. If it boots up successfully in that language, you can then safely navigate to your in-game audio/video settings to attempt switching your UI preference back to English. Fix 4: Repairing Core Software (DirectX & Visual C++)

: You bought a valid regional copy (e.g., Eastern European, Polish, or Russian region) but changed your game preference to English. The client expects English audio maps that were never downloaded.

: Right-click Black Ops II in your Steam Library , select Properties > Installed Files , and click Verify integrity of game files to redownload any missing or corrupt language packs.

: Copy these files and paste them into the main game folder where the .exe file is located, replacing any existing files.

Quick fixes (try in order)

If other fixes fail, do a complete removal and fresh installation.

This error is particularly common on the PC version of the game (Steam), though it has also been reported on older console generations. It essentially means the game’s audio engine cannot locate or read a critical file containing sound data. Without this "sound bank," the game refuses to launch, leaving players confused and searching for answers in decade-old forum threads.

Antivirus software may have mistakenly quarantined the sound file as a false positive.

on Virus & threat protection and choose Manage settings .