Modern Warfare 4 PC Storage Size is officially listed as 115 GB at launch, and Activision requires an SSD for the minimum, recommended and ray tracing PC specification tiers.
The 115 GB figure is the published launch storage requirement, not a promise that the game will never grow. Activision explicitly notes that additional storage may be required for mandatory updates, so a drive with exactly 115 GB free is not a sensible long-term target.
Modern Warfare 4 PC Storage Size: what Activision requires
Modern Warfare 4 PC Storage Size Image Activision.
| Specification tier | Storage |
| Minimum | 115 GB, SSD required |
| Recommended | 115 GB, SSD required |
| Ray Tracing | 115 GB, SSD required |
The same storage figure appears across every official PC tier. A weaker GPU does not reduce the base storage requirement. If you are checking the full CPU, GPU and RAM table, use Modern Warfare 4 PC System Requirements.
Activision also warns that mandatory updates can require more room later. Keeping extra free space avoids getting through the preload only to be blocked by a launch-day or post-launch patch.
Does Modern Warfare 4 require an SSD?
Yes. Modern Warfare 4 PC Storage Size is tied to an SSD requirement at every listed tier. Activision does not provide a supported HDD alternative in the launch specification table.
That makes the storage type as important as the capacity. A PC can have hundreds of gigabytes free on a mechanical hard drive and still fail to match the published requirement if the game is not installed on an SSD.
Is 115 GB the download size?
Not necessarily. The official table states storage space, which is an installation requirement. Storefront downloads can use compression, and the amount transferred over the internet does not have to match the final installed size byte for byte.
The Modern Warfare 4 PC Preload begins October 15 at 9:00 a.m. PT, but Activision’s PC article does not publish a separate compressed preload-download figure.
How much free space should you leave?
More than 115 GB. Activision’s own note that mandatory updates may require additional storage is the important part here. Leaving a reasonable buffer gives the launcher room to patch files and gives the game room to grow after launch.
The exact best buffer depends on the drive and launcher, so there is no need to invent a second official number. The hard confirmed figure is 115 GB on an SSD, with extra space potentially needed later.
Storage across Steam, Battle.net and Xbox on PC
Modern Warfare 4 launches on Steam, Battle.net and Xbox on PC. The existing Modern Warfare 4 PC guide covers the storefront choice, but the published 115 GB SSD requirement is part of the general PC specification rather than a different storage target for each launcher.
If you are moving an install between drives, make sure the destination SSD has enough free space before starting the transfer. A nearly full drive is also a poor place to leave a large live-service game that will receive mandatory updates.
Campaign Early Access makes early storage planning useful
Eligible digital PC buyers get Campaign Early Access on October 16, one day after the preload starts. That makes Modern Warfare 4 PC Storage Size relevant before the October 23 full release rather than only on launch morning.
The wider Modern Warfare 4 launch guide covers the release milestones, while this page should remain the storage answer if the install footprint changes in a later official update.
Modern Warfare 4 PC Storage Size is now based on final launch information rather than beta estimates. Check the exact requirement or feature that matters to your setup, then use the linked Modern Warfare 4 guides for the wider launch, multiplayer or DMZ context instead of mixing separate systems together.
For Modern Warfare 4 PC Storage Size, free space and drive type are separate checks. A mechanical drive with plenty of room does not match the published SSD requirement, while an SSD with almost no spare room can still become a patching problem after launch. Recheck the official PC article if a launch-day patch changes this part of the setup.
The safest interpretation of Modern Warfare 4 PC Storage Size is 115 GB as the confirmed launch allocation plus extra breathing room for mandatory updates. Activision does not publish one permanent lifetime footprint for a game that will continue receiving content. Recheck the official PC article if a launch-day patch changes this part of the setup.
For the first-party technical details behind Modern Warfare 4 PC Storage Size, see the official Call of Duty Modern Warfare 4 PC article.
