If you have a modern laptop or budget desktop, you are more than safe. The game runs on a toaster.
Minimum (2007):
Recommended (2026 Playability):
Note: On Windows 10/11, you may encounter a "DirectX error." Solution: Navigate to the game folder, find mohaa.exe or iw3sp.exe, right-click -> Properties -> Compatibility -> "Reduce color mode" to 16-bit, or run the DirectX End-User Runtime Web Installer. Call of duty 4 modern warfare -pc-
Before Modern Warfare, "create-a-class" was a niche feature. Call of Duty 4 perfected it on PC. The dedication to the Call of Duty 4 Modern Warfare -pc- multiplayer scene was obsessive. If you have a modern laptop or budget
This is the practical section you came for. The game has been removed from Steam (replaced by the 2016 remaster), but there are still ways to play. Recommended (2026 Playability):