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Win7 USB PATCHed install stick won't boot in uefi

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TimH View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Topic: Win7 USB PATCHed install stick won't boot in uefi
    Posted: 04 Nov 2015 at 9:50am
When I turn off csm and select usb uefi partition as my boot device I get an error the the efi/microsoft/boot/bcd has an error.

I have created the usb twice and get the error each time. I need to boot in uefi mode but there seems to be a bug.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 04 Nov 2015 at 10:42am
Oh FYI z170 oc formula. 1.4 bios
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 05 Nov 2015 at 1:25am
And the error I'm getting is:

Windows failed to start. A recent hardware or software change might be the cause to fix this problem:

1 insert your Windows installation disc and restart your computer

2 choose your language settings and then click Next

3 click Repair your computer

If you do not have this disc contact your system administrator or computer manufacturer for assistance.

File:\efi\microsoft\boot\bcd

Status: 0x000000d

Info: an error occurred while attempting to read the boot configuration data
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 05 Nov 2015 at 1:26am
3 times I've tried now with new usb sticks. Each time same error.
Funny thing is the windows disc this is made from boots fine in uefi but I don't have a keyboard or mouse which is problematic.


Edited by TimH - 07 Nov 2015 at 1:57pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 07 Nov 2015 at 2:00pm
Still getting the error. I just tried RUFUS to create the UEFI USB installation drive from the win 7 patcher. Next I'm going to try rufus to create the UEFI stick from the installation CD and see if it does a better job than the USB patcher. If it does then I may copy the .wim file from the patched CD to the new Stick and see if that's all I need to do to get USB support.

Meanwhile has anyone gotten a Patched USB stick to boot in UEFI mode?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2015 at 12:44am
Okay I tried using the BCD from the installation disk and that didn't work. Here is the BCD data but I don't see any problems

Windows Boot Manager
--------------------
identifier              {9dea862c-5cdd-4e70-acc1-f32b344d4795}
description             Windows Boot Manager
locale                  en-US
inherit                 {7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}
default                 {7619dcc9-fafe-11d9-b411-000476eba25f}
displayorder            {7619dcc9-fafe-11d9-b411-000476eba25f}
timeout                 30

Windows Boot Loader
-------------------
identifier              {7619dcc9-fafe-11d9-b411-000476eba25f}
device                  ramdisk=[boot]\sources\boot.wim,{7619dcc8-fafe-11d9-b411-000476eba25f}
path                    \windows\system32\boot\winload.efi
description             Windows Setup
locale                  en-US
inherit                 {6efb52bf-1766-41db-a6b3-0ee5eff72bd7}
osdevice                ramdisk=[boot]\sources\boot.wim,{7619dcc8-fafe-11d9-b411-000476eba25f}
systemroot              \windows
detecthal               Yes
winpe                   Yes
ems                     Yes

But not being aware of what it should look like I can see no reason why ASUS BIOS 1.7 wouldn't like this BCD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2015 at 12:51am
Okay if no one sees a problem with above I will have to conclude that the board does not support booting UEFI from a USB yet. It appears to be a BIOS problem as it does boot from the CD in UEFI without the above error.

I will create a patch DVD to install windows 7 from. Hopefully that will do it.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2015 at 3:07am
All right that didn't work either. I think the Patcher is the problem.

I used the patcher to create a Patched ISO of Win7 64bit and I burned it to the DVD.
 
I put it in the computer and the Z170 Formula OC wouldn't recognize it as a UEFI boot disk.

I put the original in and the Z170 Formula OC recognized it as a VALID UEFI boot disk.

So something is going wrong in the Patcher. I have version 2.0.5
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimH Quote  Post ReplyReply Direct Link To This Post Posted: 08 Nov 2015 at 3:34am
One thing I did notice is that the Original installation disk Win7 64, had no {boot} folder under efi only {microsoft} folder. the created USB and ISO both had a boot directory with a file bootx64.efi or something like that. Not sure if that extraneous folder and file is what is messing up the boot.


Edited by TimH - 08 Nov 2015 at 10:19am
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