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Windows 7: UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with

01 May 2015   #280

Windows 8.1 Pro
Doesn't work with this setup


I found the installation process in this thread very promising and I did give it a try but it doesn't work on my PC (ASRock X99 WS + i7 5820K).

I'm using Windows 7 Home Premium, OEM DVD. The activation key only works with the OEM version of Windows. Windows can be installed perfectly fine using BIOS.

When booting from the DVD with the motherboard set up in EUFI mode (Secure Boot Disabled, BIOS Compatibility Disabled), the boot process reaches the Windows animated Logo. At that point, sometimes it freezes completely, other times the logo is glowing forever - it never reaches the setup wizard.

I prepared a USB stick in accordance with the instructions and that doesn't work either (using the ISO I exported from the OEM DVD). I get a "Windows Boot Manager" error: "Windows failed to start. A recent hardware or software change might be the cause....", "File: \EFI\Microsoft\Boot\BSD", "Status: 0xc000000d", "Info: An error occurred while attempting to read the boot configuration data.". I have to options: Continue or Exit. Both take me to the firmware.

I suspect this is due to the OEM version of the DVD but I'd be grateful if other users could confirm. If we verify this, I'd be grateful if the article was updated, accordingly, so as to help other users - save time!

Many thanks!

My System SpecsSystem Spec
23 May 2015   #281

Windows 7 Home Premium x64

I am having issues with my new build and Windows 7 Home Premium x64 Retail. I first installed as standard MBR but decided I wanted to used the new GPT UEFI method. So I deleted all the partitions, converted to GPT, booted the Windows installer via the UEFI selection and proceeded with installation. I verified it was installed via UEFI by checking I had the System, MSR, and Windows Partitions. I also checked some log that indicated that the detected boot environment was EFI.

Everything is running fine but I plan on dual booting to OSX later and discovered I need to have CSM disabled. I contacted EVGA and asked them for a UEFI compatible BIOS and they gladly obliged. I went into my bios and turned CSM off. The computer will POST and starts loading Windows. The animated logo will show and just prior to showing the desktop, it reboots.

The bios gives the following message: "The current BIOS setting do not fully support the Windows UEFI mode. The CSM (Compatibility Support Module) settings have been changed for better compatibility. For further adjustments, press <F1> to enter BIOS Setup. If No adjustment are needed, press <F2> to confirm the current settings and enter OS directly."

I thought oh Great, now I have to reinstall. So before I wiped the drive again, I unplugged my SSD and storage drive to try installation to the 180GB drive I intend to use for OSX later. I again turned CSM off and tried booting to the UEFI Windows DVD. It does the same thing, just prior to showing the installer, it reboots. I'm not sure what is wrong. Do I have a Bios setting wrong? I updated all the drivers directly from the manufacturer for Intel and Nvidia. I'm pretty sure Secure Boot is turned off, I have "Other OS" selected. It still says Secure boot is enabled but not Loaded but I guess that's normal for Asus Bios's? I also turned off Fast Boot because I thought it doesn't work with Windows 7, not sure.

My hardware:
Asus Gryphon Z97 running latest BIOS
Intel 4690K Slightly OC'd
EVGA Geforce 660 FTW ACX w/ UEFI Bios
LG BluRay Drive
Samsung Evo 850 SSD 250GB
HGST 7K1000 Travelstar 1TB
Hitachi 180GB
My System SpecsSystem Spec
23 May 2015   #282


Disable Secure Boot fully.

CSM may not always allow UEFI install. Do you have the latest BIOS firmware?

Otherwise it may be an OSX issue for which you'd need to contact an Apple forums since we do not support that here.
My System SpecsSystem Spec
23 May 2015   #283

Windows 7 Home Premium x64

I actually haven't even touched OSX yet, that's a future project for the 180GB HD when I get around to it. I wanted to make sure Windows was setup properly before I even attempt that, I don't need to be compounding problems.

Yes, I have the latest BIOS, ver 2205

Do you know how to disable secure boot fully on Asus boards? I do not have an option for that and I thought I read somewhere that just selecting Other disables it. But then again I also read somewhere that you need to clear the keys. If I have to clear my keys and I need them later how do I get them back? Will a new set regenerate?
My System SpecsSystem Spec

23 May 2015   #284

Win-7-Pro64bit 7-H-Prem-64bit

Fast startup and secure boot what a pain in the rear end.
My System SpecsSystem Spec
23 May 2015   #285

Windows 7 Home Premium x64

I fully disabled secure boot by saving the keys to an old jump drive and then clearing them. I still cannot boot windows with CSM disabled. Any ideas?
My System SpecsSystem Spec
23 May 2015   #286

Windows 7 Home Premium x64

I am using a Retail copy of Windows 7 x64 with no service pack. Could that be the issue?
My System SpecsSystem Spec
23 May 2015   #287


Possibly. Read Step 1 of Clean Reinstall Windows 7 about options to obtain the latest media.
My System SpecsSystem Spec
23 May 2015   #288

Windows 7 Home Premium x64

I am attempting to download a new copy from Microsoft right now. In case anybody is having issues, the link no longer works in anything but internet explorer.
My System SpecsSystem Spec
23 May 2015   #289


Thanks for that update. We have had lots of reports of Microsoft Software Recovery not working.
My System SpecsSystem Spec

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