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I am trying to install windows 7 from a USB UEFI stick that I tried to create in vain. I read other posts on creating UEFI USB Boot sticks and found Rufus the most convenient option . However , Rufus won't allow me a choice of GPT method and Fat32. It complains that it needs a UEFI ISO image. "When using UEFI target type only EFI bootable images are supported ..." So I gather , from this that my ISO does not have the typical EFI files. How do I get these files and what files are needed. What I have is a multiboot ISO that lets you choose between 64 and 32 bit versions. Dir structure is like this

Drive letter
Boot
EFI 
source64
sources 
etc

Under EFI

Microsoft --> Boot --> Fonts(d),Bcd (file)

Under Boot

en-us,fonts,bcd(file),boot.sdi,bootfix.bin,bootsect.exe,etfsboot.com,memtest.exe 

Is this is an issue with missing EFI files is there a way I can download them , alternately can I use GRUB BASED EFI Loader to boot dual boot windows 8 and windows 7 on a EFI Laptop. Just to clarify windows 8 is pre-installed.Windows 7 needs to be installed as dual boot option to windows 8 using a UEFI USB stick .

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1 Answer 1

Windows 7 and older Windows Versions do not support UEFI. They still support the BIOS. Hence the ISO does not come preloaded with UEFI boot images for your motherboard to recognize. That's the reason RUFUS doesn't allows you to write the ISO.

You have no option available!

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