If you are staring at this error message, you are not alone. This is one of the most common technical issues for the game, specifically affecting players who have upgraded to newer versions of Windows or modern graphics cards.
The Steam Overlay often creates a "hook" conflict with the DirectX 10 API used by Just Cause 2, triggering Error 15. Go back to the menu of the game in Steam.
Older games like Just Cause 2 often require legacy DirectX components not included by default in Windows 10 or 11. Download the DirectX End-User Runtime directly from Microsoft . just cause 2 fatal directx error code 15 fix download
October 2025 Applies to: Windows 10, Windows 11, Windows 7 (Legacy)
Just Cause 2 was released in 2010. At the time, the standard for game window management was borderless windowed mode. However, as Windows 10 and Windows 11 evolved, the way the operating system handles full-screen exclusive applications changed. If you are staring at this error message, you are not alone
microsoft.com (Official URL: /en-us/download/details.aspx?id=35)
A strange quirk of Just Cause 2 is that the latest GPU drivers sometimes break older DirectX features (specifically MSAA). This causes Code 15 instantly on launch. Go back to the menu of the game in Steam
To fix the error, you need to edit a configuration file. This file is usually located in your Steam directory or your "My Documents" folder, depending on where you bought the game.
Once you manage to get to the main menu, head straight to .