Call Of Duty Exe Err Mss Init Failed 150 🔥 Extended

A third-party app (Discord overlay, Razer Synapse, MSI Afterburner, or NVIDIA ShadowPlay) might be hijacking the audio stack.


Add the entire game folder (e.g., C:\Program Files\Call of Duty) to your antivirus exclusion list.

This is nuclear, but effective for persistent Error 150. This disables a Windows audio protection feature that sometimes blocks legacy games.

Warning: Back up your registry first (File > Export).


Do you have a monitor with speakers? An Elgato Stream Deck? A USB microphone that acts as an output? If any of those devices are set as your Default Communications Device but are currently powered off or unplugged, MSS will try to wake them. When it fails to get a handshake, it panics. Error 150 is the sound of silence.

ERR MSS INIT FAILED 150 points to a problem with Microsoft DirectX or the game’s ability to initialize the Multi-Threaded Software Sound (MSS) system. It often appears on launch or when switching graphics settings.

Common causes:


You don’t need to reinstall Windows. You don’t need to buy a new GPU. Here is the actual fix.

Step 1: The Sample Rate Surrender

Step 2: The DLL Resurrection

Step 3: The Arithmetic of Audio

The "Call of Duty exe err mss init failed 150" error is almost always an audio initialization issue. Start by verifying your game files, then move on to updating your audio drivers. In the vast majority of cases, those two steps will resolve the problem and get you back into the lobby.


The Call of Duty series remains one of the most popular first-person shooter franchises, but players sometimes encounter cryptic runtime errors that interrupt gameplay. One such error — reported as “exe err mss init failed 150” — appears during launch and prevents the game from initializing properly. This essay explains what this error likely means, outlines common causes, and presents a clear, ordered troubleshooting plan to resolve it.

What the error indicates

Common causes

Step-by-step troubleshooting (ordered, prescriptive)

  • Run the game and launcher as administrator Call of duty exe err mss init failed 150

  • Verify and repair game files

  • Disable overlays and background software

  • Update or reinstall key drivers

  • Reinstall required runtimes

  • Clear game cache and user config

  • Check disk and memory integrity

  • Reinstall the game

  • Test on a clean boot

  • Support can map code “150” to an internal meaning or provide a targeted fix.
  • Preventive recommendations

    Conclusion “exe err mss init failed 150” is a startup initialization failure that typically points to missing or conflicting software components, driver issues, or corrupted files. A methodical approach—verifying game files, disabling overlays, updating drivers, reinstalling runtimes, clearing caches, and, if needed, contacting support with logs—resolves the majority of such errors. Following these steps in order minimizes downtime and restores stable gameplay.

    Related search suggestions (you may use these terms to find more specific solutions)

    "EXE_ERR_MSS_INIT_FAILED" Call of Duty typically indicates that the game cannot initialize the Miles Sound System (MSS)

    , which is responsible for audio playback. This usually happens due to missing game files, outdated audio drivers, or incorrect hardware settings. Immediate Solutions Verify Game Files : Right-click the game in your Library > Properties Installed Files Verify integrity of game files Battle.net : Click the gear icon next to "Play" > Scan and Repair Update or Reinstall Audio Drivers

    Outdated drivers are a primary cause. Download the latest drivers from your motherboard or sound card manufacturer's site (e.g., Run as Administrator Right-click the game's file (e.g., Properties Compatibility Run this program as an administrator Set Audio to "Stereo" Go to Windows Sound Settings > More sound settings > select your active device > . Ensure it is set to or a standard 16-bit, 44100Hz/48000Hz format under the

    Cant launch this game, and gives me a error : r/modernwarfare

    Here’s a step-by-step troubleshooting guide for the “CoD.exe ERR MSS INIT FAILED 150” error, typically seen in Call of Duty: Black Ops Cold War, Modern Warfare, or Warzone on PC. A third-party app (Discord overlay, Razer Synapse, MSI