Call Of Duty Exe Err Mss Init Failed 150 [2021] 100%

Click . This identifies and automatically re-downloads any corrupted mss structures.

Open your config.cfg file in Notepad and manually edit seta r_mode to match your desktop resolution (e.g., "1920x1080"). Call of duty exe err mss init failed 150

Error 150 loves chaos. If your PC detects 3 or 4 audio outputs (e.g., NVIDIA High Definition Audio via your monitor + Realtek speakers + USB headset), the game doesn't know where to send the sound. Error 150 loves chaos

The is a frustrating error that has plagued multiple iterations of the Call of Duty franchise, ranging from classic titles like Call of Duty 2 to modern entries within the Call of Duty HQ launcher, including Modern Warfare III and Warzone . This error typically appears during game initialization, signaling a failure in the Miles Sound System (MSS) —an audio middleware component—to initialize properly, which consequently prevents the game's executable ( .exe ) from starting. Open that folder

Right-click your active sound device (e.g., Realtek Audio) and select .

: The primary file required for the sound system is either missing from the game folder or corrupted.

Open that folder, find , and run it as an administrator.