To prevent crashes or security issues, you can manually add the executable to Windows Exploit Protection. Search for in the Windows search bar.
In-game overlays can occasionally conflict with the "CEG" (Content Encryption Generation) security MW3 uses. In Steam, right-click the game > Properties Toggle off Enable the Steam Overlay while in-game 5. Check Your Anti-Virus iw5mp_ceg.exe Mw3 iw5mp ceg.exe
Go to and select Add program to customize > Add by File Path . To prevent crashes or security issues, you can