Codcallofduty5worldatwarreloaded Updated -

The patching process is sequential. You cannot simply jump to 1.7. You generally need to install Patch 1.1, followed by 1.2, 1.4 (which includes 1.3), 1.5, 1.6, and finally 1.7. Each update significantly improves the game’s engine stability and fixes the "DirectX encountered an unrecoverable error" bug that plagues many modern PC users.