Windows 10 and 11 have a "Fullscreen Optimization" feature that frequently conflicts with the IW7 engine.
. It is responsible for launching and running the game engine. Core Functionality iw7shipexe work
Windows 10/11 Game Mode prioritizes iw7shipexe's threads, reducing background interruptions. Windows 10 and 11 have a "Fullscreen Optimization"
The .exe relies on external libraries to run. iw7shipexe work
: Disable fullscreen optimizations (right-click the .exe → Properties → Compatibility), add the game folder to antivirus exclusions, and delete the shader cache folder in %ProgramData%\NVIDIA Corporation\NV_Cache .