As a last resort, you can tell Windows to run the game on only a single CPU core. This can bypass complex multi-threading errors, though it may affect performance.
To fix the infamous "Fatal Error! QA_APPROVED_BUILD_JANUARY" startup crash, the most effective solution is to delete the local "WB Games" cache folder located in your PC's Documents directory . This instantly resets broken or corrupted configuration files ( BmEngine.ini ) that cause the Unreal Engine crash loop without deleting your actual Steam cloud saves.
This error is not a standard crash. It’s a that never got fully stripped from the retail PC version. The “QA Approved Build January” string refers to a quality assurance milestone build from January (likely 2011, pre-release). When the game hits a specific unexpected state—usually memory corruption, a missing asset, or a threading conflict—it triggers this developer-only message instead of a normal crash handler. As a last resort, you can tell Windows
"Check the January work logs!" he shouted across the room to the lead engineer. "Did anyone touch the streaming triggers near the Iceberg Lounge?"
[Arkham City Launcher] -> [Settings] -> [DirectX 11] -> Set to "MV_DX9" or "Disabled" It’s a that never got fully stripped from
Override and turn off all protection settings for this specific executable.
: Modern hardware often struggles with the game's original DX11 implementation. BmLauncher.exe settings and turn off DX11 features PhysX to "Off" or "Normal". If the launcher won't open, edit the DefaultEngine.ini BmGame \ Config and change AllowD3D10=True Steam Community Advanced Troubleshooting go to "Program settings
Lower your Particle Quality in the in-game settings to Low or Medium before entering the courthouse. The scene contains too many physics-enabled debris objects (papers, glass) that overload the engine. Once you are inside and the cutscene plays, you can raise the settings back up.
. Far from being a simple "bug," this error is a glimpse into the internal development and quality assurance (QA) pipeline of Rocksteady Studios, reflecting the fragile intersection of aging game engines, modern hardware, and the specific legacy of the "Games for Windows Live" (GFWL) era. The Anatomy of the Error The specific string— QA_APPROVED_BUILD_JANUARY_2011
: On Windows 10/11, search for "Exploit protection" in your system settings, go to "Program settings," add the game's executable, and disable all protections for that specific file to prevent Windows from blocking its launch.
Fatal error! QA_APPROVED_BUILD_JANUARY_2011 424000 11-04-2012 15:05.24 (Wwise: 2011.1.0 #3886) Game Address = 0xe129fd (filename not found) [in ...\Binaries\Win32\BatmanAC.exe] Address = 0x41fc12 (filename not found) [in ...\Binaries\Win32\BatmanAC.exe] ...and so on.