A standard Windows 7 ISO (especially SP1 from 2011) lacks the proper EFI bootloader or contains a buggy version. When you try to boot in UEFI mode, the firmware looks for \EFI\BOOT\BOOTX64.EFI on the USB drive. If missing, boot fails.
Last updated: 2025. Tools and links verified functional. Windows 7 Uefi Bootable Iso Download
Communities like and Reddit r/windows7 maintain updated ISOs that include: A standard Windows 7 ISO (especially SP1 from
Once you have created the UEFI bootable USB drive, you can boot from it on your modern computer. Windows 7 Uefi Bootable Iso Download