Hello Guys,

Everytime i try to start iw5m there comes the error: "Error during Initalization Steam must be running or initial authentication to succeed. Please start Steam and restart the game to continue"

 

I always was able to play it when i had my steam account but now i gave it to a friend and mw3 4d1 doesnt work anymore.

mw2 4d1 Always worked with and without steam.

 

 

Can you guys please help me, thx

Isn't the message clear enough ? Start Steam.

Thanks it helped I thought I need an mw3 steam account to play it but worked.. THANKS

People and their incapability of reading and following the instructions given in errors are simply amazing.