How To Install Call Of Duty Modern Warfare 3 On Pc Patched Jun 2026

Navigate to your Library tab, find Call of Duty , and click the blue Install button.

Click on the Library tab at the top of the screen.

If you are tight on storage, use the feature in Battle.net:

Minimum : NVIDIA GeForce GTX 960 / GTX 1650 or AMD Radeon RX 470.

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: If you haven't bought it, select the MW3 edition you want and purchase it. If you already own it, click Install .

Buy the desired edition (Standard or Vault Edition). Once purchased, click Library at the top of the client.

Launch the Steam desktop app and log into your account.

For the classic , Steam offers the most stable and straightforward experience for modern PCs. Now, get ready to suit up and deploy Navigate to your Library tab, find Call of

Right-click in your Steam library sidebar and select Properties .

Uncheck the boxes next to Modern Warfare III: Campaign or Warzone if you only wish to download the Multiplayer files, saving up to 60 GB of data. 4. Post-Installation Optimization

The Xbox app will prompt you to link your Xbox profile to an Activision account. Follow the on-screen browser prompts to complete this link; it is mandatory for cross-progression.

Click on the game title. Click the green Install button. This public link is valid for 7 days

Upon reaching the main menu, look at the top-left or top-right corner of your screen. You will see a notification stating or "Shader Optimization in Progress." Do not enter a match while shaders are installing.

Search for Call of Duty in your list of games and click on Call of Duty: Modern Warfare III . Click the blue button.

The installation process isn't always flawless. If you run into problems, here are the most common issues and their fixes.