How to Play Modern Warfare 2 Multiplayer Without a Product Key

Written by seth amery
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"Call of Duty: Modern Warfare 2" is a military-themed shooter game released by Infinity Ward on the PC in 2009. As with many other games nowadays, if you purchase a retail copy of "Modern Warfare 2" in the store, you have to deal with a product key during installation. If you purchase the Steam version, you can install the game without a product key; the process is taken care of automatically.

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  1. 1

    Navigate to the Steam page for "Modern Warfare 2."

  2. 2

    Add the game to your cart and click "Purchase for Myself".

  3. 3

    Log into your Steam account when prompted to do so.

  4. 4

    Click "Purchase". This opens Steam and installs the game.

  5. 5

    Double-click "Call of Duty: Modern Warfare 2 Multiplayer" within Steam.

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