If you suspect the file is corrupted, use the Battle.net Client or Steam to "Scan and Repair" the files.

High-speed SSDs are highly recommended to handle the large asset streaming managed by the executable.

Users often discuss modernwarfare.exe because it is notoriously heavy on system resources. If your game is stuttering, try these common community-sourced fixes :

Running the .exe as an administrator can bypass permissions issues that cause "Dev Errors." Security and Safety

Allows for authentic night vision and thermal imaging effects.