its a setting in the game just lanch cod and go to settings and switch it from window to full screen

jairoelpiernas what is your antivirus?

womp womp

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Me too.

seems that the base game doesn't work, so i used a diferent one, did all the steps and even online mode worked

Dss0 bro u are a legen

Cee Swaeg the game files can be found on Steam

Platinum does not exist

As for Plutonium it's made for Windows 8.1 and above
You can force it to work by bypassing some things but idk how. Search for it

thank you

Your internet fails to connect to some servers because of some DNS issue or whatever
Fix it or change DNS or use Cloudflare Warp 🤷

Constqntine ?