Right-click your specific Call of Duty title and select .
If your audio libraries are corrupted, you must clean out the driver cache. Call of Duty 4 - DirectX - Microsoft Q&A
The primary culprit behind this issue is either a , which the game relies on to initialize its multi-channel audio tracks. Below is a comprehensive guide to understanding why this happens and how to completely resolve the error. Anatomy of the "MSS Init Failed 150" Error Call of duty exe err mss init failed 150
Ensure a physical 3.5mm headphone jack or external speaker cable is plugged directly into your PC's audio output port.
Run the game and launcher as administrator Right-click your specific Call of Duty title and select
Right-click the speaker icon in your system tray and select . Go to the Recording tab.
has redefined global social interaction. It transformed the "living room" experience into a global arena, where millions of players connect across continents. While often criticized for its depiction of violence, the franchise has also been a pioneer in veteran support through initiatives like the Call of Duty Endowment Below is a comprehensive guide to understanding why
The game may lack the necessary permissions to access audio system files. Navigate to the game's installation folder.
: For Modern Warfare (2019) and some other recent titles, deleting specific files in the game directory has proven effective. Navigate to your game's installation folder (e.g., ...\Call of Duty Modern Warfare ) and delete the bink2w64.dll and fileSysCheck.cfg files (located in the main subfolder). Then, run a Scan and Repair via your game launcher, which will re-download the correct files.
Before assuming the problem is on your end, especially for more recent entries, it's a good idea to quickly verify the game's server status.
: Ensure your Realtek or other onboard sound drivers are up to date by visiting the official manufacturer website Device Manager : In the game's installation folder (where the