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Windows 7: Is Windows 7 x64 UEFI install even possible?

15 Jul 2016   #11
Engert

Windows.All
 
 

Quote   Quote: Originally Posted by Megahertz07 View Post
I've made a tutorial on how to install Win 7 on new MB.
Create a Windows 7 USB flash installation with new drives for new MB's
Okay, your tutorial is great and I understand the issue with most people is when they try to install Windows 7, their keyboard and mouse is either frozen or the hard drive is not visible and that's because drivers need to be injected.
My issue is at the initial boot phase. Because I have done everything that you have nicely laid out in that tutorial but I cannot boot from flash drive.
The error that I get is \EFI\Micosoft\Boot\BCD 0xc000000d.


My System SpecsSystem Spec
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15 Jul 2016   #12
Engert

Windows.All
 
 

Osprey brought up an interesting point where he mentioned that Windows required INT10 and if the motherboard doesn't have that, it's not going to work.
But the question now is, why does it work from a DVD but not Flash Drive? On a motherboard where INT10 is not present.
My System SpecsSystem Spec
15 Jul 2016   #13
Engert

Windows.All
 
 

By the way, using diskpart to prepare a flash drive did not help so rufus may not be the issue.
Since the original Microsoft disc works, now i'm preparing my 8GB iso for a dual layer dvd. We'll see if it works.

Code:
@ECHO OFF
title Creating Windows 7 x64 ISO Image ....

ECHO.
ECHo Creating Windows 7 x64 EFI ISO image. Please wait ...
SET bootL=C:\Win7WorkBench\DVD\efi\microsoft\boot\efisys.bin
SET bootC=C:\Win7WorkBench\DVD\boot\etfsboot.com
SET VDVD=C:\Win7WorkBench\DVD
SET VISO=C:\Win7WorkBench\ISO
SET PETOOLS=%Programfiles(x86)%\Windows Kits\10\Assessment and Deployment Kit\Deployment Tools\amd64\Oscdimg

START "Creating ISO. . ." /WAIT "%PETools%"\oscdimg -h -m -o -u2 -udfver102 -bootdata:2#p0,e,b%bootC%#pEF,e,b%bootL% -lWin7Universal %VDVD% %VISO%\Win7x64_Universal_EFI.iso
ECHO.
ECHO Windows 7 x64 EFI ISO Image is created successfully.
ECHO.
PAUSE
EXIT
My System SpecsSystem Spec
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15 Jul 2016   #14
Engert

Windows.All
 
 

Unbelievable! It works from a DVD.
I'm gonna dig a little further to understand WHY and if a USB install is even possible.
My System SpecsSystem Spec
15 Jul 2016   #15
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Quote   Quote: Originally Posted by Engert View Post
Unbelievable! It works from a DVD.
I'm gonna dig a little further to understand WHY and if a USB install is even possible.
I'm wondering if the "why" is related to why I failed using a flash drive Rufus-made installer from an official ISO but succeeded using a Rufus-made flash drive installer made from a burned DVD installer's ISO?
My System SpecsSystem Spec
15 Jul 2016   #16
Engert

Windows.All
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
Quote   Quote: Originally Posted by Engert View Post
Unbelievable! It works from a DVD.
I'm gonna dig a little further to understand WHY and if a USB install is even possible.
I'm wondering if the "why" is related to why I failed using a flash drive Rufus-made installer from an official ISO but succeeded using a Rufus-made flash drive installer made from a burned DVD installer's ISO?
The first guess that comes to mind here is that the Windows 7 UEFI installation files (USB only) do not have the mechanism to handle motherboards where INT10 is not present.
So the next test is going to be : USE Windows 8.1 setup files with a Windows 7 wim and see IF that works from a Flash Drive.
My System SpecsSystem Spec
15 Jul 2016   #17
Engert

Windows.All
 
 

Doesn't look like it's doable and it all goes back to the INT10 and VGA.sys.
I'm poking around into loading HIVES from the WIM files and delete VGA.sys services which don't work on UEFI motherboards.
My System SpecsSystem Spec
15 Jul 2016   #18
Engert

Windows.All
 
 

I think it's pretty clear to me at this point that we have to say Goodbye to Windows 7 on new UEFI hardware with no BIOS emulation since Windows 7 is not fully UEFI compliant.
My System SpecsSystem Spec
15 Jul 2016   #19
Engert

Windows.All
 
 

My System SpecsSystem Spec
15 Jul 2016   #20
Megahertz07

Windows 7 HP
 
 

To create a UEFI boot able flash drive:
Rufus or do it yourself: UEFI Bootable USB Flash Drive - Create in Windows
Microsoft: https://www.microsoft.com/en-us/down...-download-tool
My System SpecsSystem Spec
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 Is Windows 7 x64 UEFI install even possible?




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