| Installation Scenario | Required Free Space | | :--- | :--- | | New Install (Full Game) | | | If You Already Have Call of Duty HQ and Warzone | 78 GB | | Minimum for COD HQ + Multiplayer Only | 79 GB (SSD required) |
Since the app acts as a hub for MW2, MW3, and Warzone, click "Manage DLC" to select specific packs. Make sure you check the boxes for "Modern Warfare III" campaign, multiplayer, and zombies to avoid downloading unnecessary content. Download: Click "Next" to begin the download. Method B: Installing on Battle.net
To install Call of Duty: Modern Warfare III (2023) on your PC, you can use several platforms, including Battle.net Microsoft Store . The game is managed through the Call of Duty HQ
To optimize storage space on Steam before or during the download: how to install call of duty modern warfare 3 on pc
Choose the drive where you want the game files stored. Ensure the drive format is NTFS and has adequate free space.
Once the base game launches, you may need to use the in-game "Manage Files" menu to queue up specific high-resolution texture packs or missing modes. Step 3: Post-Installation & First-Time Setup
Before downloading dozens of gigabytes, ensure your computer can handle the game. Modern Warfare 3 requires a solid state drive (SSD) for optimal performance. Minimum Requirements Recommended Specifications Windows 10 64-bit (latest update) Windows 10/11 64-bit (latest update) CPU Intel Core i5-6600 or AMD Ryzen 5 1400 Intel Core i7-6700K or AMD Ryzen 5 2600X RAM GPU NVIDIA GTX 960 / GTX 1650 or AMD RX 470 NVIDIA GTX 1080Ti / RTX 3060 or AMD RX 6600XT VRAM Storage SSD with ~149 GB available space SSD with ~149 GB available space Network Broadband Internet connection Broadband Internet connection Step 2: Choose Your Platform Installation Method | Installation Scenario | Required Free Space |
If you prefer keeping your gaming library centralized on Valve's platform, follow these steps for Steam.
Ensure you are logged into the account you used to purchase the game. Phase 3: Installing Modern Warfare III Method A: Installing on Steam
If you are encountering any specific or crashes? Method B: Installing on Battle
Go to Settings > Update & Security > Windows Update, and check for pending operating system updates.
Upon purchase, the game will appear in your library. Clicking the "Install" button will prompt the launcher to ask for a file destination. This is a critical step: ensure the destination folder is located on your drive with the most free space. The game is large enough that attempting to install it on a drive with barely enough space can lead to corruption or update failures.