Can I play MW4 DMZ on a hard drive?

Activision lists a 115 GB SSD for every tier, so a hard drive is below the published requirements.

Why will MW4 not start on my PC?

The most common reason is TPM 2.0 or Secure Boot being disabled. Both must be on in your BIOS/UEFI.

MW4 DMZ PC Requirements

MW4 DMZ PC requirements are the same as for all of Modern Warfare 4: at least a Ryzen 5 1400 or Core i5-6600, 8 GB of RAM, a GTX 970 or RX 470 class card and 115 GB on an SSD. TPM 2.0 and Secure Boot must both be enabled.

Spec	Minimum	Recommended (90 FPS, High)	Ray tracing (4K upscaled)
OS	Windows 10 64-bit	Windows 11 64-bit	Windows 11 64-bit
CPU	AMD Ryzen 5 1400 or Intel Core i5-6600	AMD Ryzen 5 3600 or Intel Core i7-8700	AMD Ryzen 7 3700X or Intel Core i7-10700K
RAM	8 GB	16 GB	32 GB
GPU	AMD RX 470, NVIDIA GTX 970 / 1060 or Intel Arc A580	AMD RX 6600 XT, NVIDIA RTX 3060 Ti or Intel Arc B580	AMD RX 9070 XT or NVIDIA RTX 5070 Ti
VRAM	3 GB	8 GB	16 GB
Storage	115 GB SSD	115 GB SSD	115 GB SSD

Source: Activision Support, PC system requirements (page dated 1 October 2026), read 19 October 2026.

TPM 2.0 and Secure Boot are required

Modern Warfare 4 will not run on PC unless TPM 2.0 and Secure Boot are switched on. Both live in your motherboard firmware (BIOS/UEFI). On most AMD boards TPM is called fTPM, on Intel boards PTT. Secure Boot usually needs the disk to use GPT partitioning and the BIOS to be in UEFI mode rather than legacy or CSM. Check in Windows with tpm.msc and the System Information page before the DMZ release time, not after.

Other PC notes from Activision

DirectX 12 and a broadband connection are required; DMZ is always online.
Only Intel and AMD CPUs with AVX support are supported.
Intel Arc cards need Resizable BAR enabled.
Recommended drivers at the time of writing: AMD 26.7.1, NVIDIA 616.56, Intel 32.0.101.8974.
All three tiers list a 115 GB SSD. Keep extra space free for updates.

Does DMZ need a stronger PC than multiplayer?

Activision publishes one set of requirements for the whole game. We expect DMZ to be heavier than multiplayer: Hajin is far larger than a multiplayer map, with long sightlines, a dense city and lots of AI, so plan for lower frame rates in Hajin City than in a 6v6 match on the same settings. If you are near the minimum spec, lower texture and shadow quality first.

Ready to play? Check the DMZ release time and plan your first route on the MW4 DMZ map.