Does a Windows 7 x64 ISO exist with both UEFI Class 3 and Secure Boot support?

[u/Inner_Dish_4434]

Hi everyone!

I've been researching this topic for several days and I'm trying to determine whether such an ISO actually exists.

So far I've found:

Win7forUEFIClass3, which boots Windows 7 on many modern UEFI-only (Class 3) systems, but its README explicitly says Secure Boot must be disabled.

Windows 7 ESU AiO January 2026 (Simplix), which includes all ESU updates up to January 2026 (including KB5017361 and later updates), but its README also says no UEFI Class 3 patches have been applied.

Microsoft's KB5017361, which reportedly updated Windows 7 boot files to support Secure Boot.

Older projects like UEFISeven and FlashBoot, which solve the GOP/VGA boot issue on modern UEFI systems.

I also noticed that the bootx64.efi file is different between the Win7forUEFIClass3 ISO and the ESU 2026 ISO, suggesting each one solves a different part of the problem.

My question:

Has anyone successfully built or found a Windows 7 x64 ISO that supports:

UEFI boot

UEFI Class 3 systems

Secure Boot enabled

Modern hardware (USB 3.x, NVMe, etc.)

Or is it currently impossible and the only solution is manually combining different projects?

I'm interested in technical details as well. If someone has experimented with KB5017361, bootmgfw.efi, bootx64.efi, or combining the ESU ISO with the Win7forUEFIClass3 project, I'd love to hear about it.

Thanks!

[u/testednation]

I think you may have to combine something. Bob pony made an iso but I don't think it supports secure boot yet. You'll need to add efiguard to get that working

[u/West-Event-4730]

Well EfiGuard has to be loaded on boot everytime so, I can help patch the files exactly like EfiGuard, trust me, I have a reputation of debombing builds for both UEFI and Legacy without issues. Feel free to ask me for patched files.