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Windows 7: UEFI mother board - Unable to install windows


15 Aug 2012   #1

Windows 7 64 bit
 
 
UEFI mother board - Unable to install windows

hi,
I bought a new system. when I try to install windows 7, I get 0 MB free space. I used diskpart and got 512 bytes on disk 0 and no media on disk 1. I've connected both DVD drive and HDD to 6 GbPS port. ububtu was not able to detect HDD. UBUNTU was unable to detect HDD
the config is
  1. Asus P8Z77-M motherboard with UEFI enabledi
  2. WD 2 TB green hard disk


My System SpecsSystem Spec
.

15 Aug 2012   #2
Microsoft MVP

 

I would disable EFI. This is normally done by enabling Legacy BIOS or removing the EFI Boot disk from BIOS boot order. If this isn't sufficient read your Manual for how to disable EFI which is not needed and more trouble than it's worth unless you have a 3tb HD. You can have as many partitions as you want by limiting to 3 Primary and unlimited Logical.

Then wipe the HD with Diskpart Clean Command from the Windows 7 installer accessing DISKPART At PC Startup, followed by the command "Convert MBR" then "Exit." Click Install Now and proceed. Post back verbatim error message if any.
My System SpecsSystem Spec
15 Aug 2012   #3

Windows 7 x64
 
 

You could try moving the drive down to the Intel SATA ports. It should not be necessary, but would not hurt.

Does the drive show in the bios? Is it a previously used drive? I assume it is not SATA III? If you have disk 0 and 1, do you have two hard drives, or is one a flashdrive? Why were you using Diskpart?

The UEFI, so far, is not involved in your situation, but are you aware of how to boot a DVD to the MBR or UEFI version of the Install DVD?

You need to get the system to recognize the hard drive, and it should show up in the bios. Are your cables connected correctly? Could you have damaged a connector during the install?
My System SpecsSystem Spec
.


15 Aug 2012   #4

Windows 7 64 bit
 
 

I will try legacy BIOS. I Think its USB 3(WD20EARX). BIOS shows 2 TB hard disk properly
My System SpecsSystem Spec
15 Aug 2012   #5
Microsoft MVP

 

No USB 3 is the newest USB controller.

Are you sure you have an EFI BIOS?

Look for EFI settings like Enable Legacy BIOS, or in the BIOS Boot order is there a EFI Boot disk - remove it.

If none, then go the the Support Downloads webpage for your exact mobo model and read the Manual for how to disable EFI and install normally to an MBR disk.
My System SpecsSystem Spec
15 Aug 2012   #6

Windows 7 x64
 
 

I have the same motherboard he does, and it is UEFI. And as I stated before, you don't disable the UEFI bios, you just boot to and install using the MBR version of the Install DVD. And that board defaults to the MBR version, unless someone has changed the bios and set it to only boot to UEFI. And that setting would be on the Boot page, possibly under CSM options (UEFI and Legacy or disable Legacy or disable UEFI).

But again, he has not even gotten to that point.

UEFI works great....don't be easily dissuaded.
My System SpecsSystem Spec
15 Aug 2012   #7
Microsoft MVP

 

So please help him to install in EFI mode if it's that easy. We need to learn this anyway.

Is it the same as UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums?

We can barely keep up with the help needed on standard MBR installs so it would be great to have some help troubleshooting EFI until the rest of us get up to speed on it.
My System SpecsSystem Spec
15 Aug 2012   #8

MS Windows 7 Ultimate SP1 64-bit
 
 

sharuu,
This article from HP is iinformative:
The 30-year-long Reign of BIOS is Over: Why UEFI W... - Input Output
My System SpecsSystem Spec
15 Aug 2012   #9

Windows 7 x64
 
 

Quote   Quote: Originally Posted by gregrocker View Post
So give him help to install in EFI mode if it's that easy. We need to learn this anyway.
From what I can tell, his system is not recognizing the hard drive. If it were a UEFI/MBR situation, he would receive some compatibility error or something about not being able to install on that type of drive.

If the drive isn't being recognized, it doesn't matter how you are installing.

Edit: It appears the -M version of the board does not have the AsMedia version of the SATA ports, so it looks like the DVD can be connected. But I will check to make sure.
My System SpecsSystem Spec
15 Aug 2012   #10

Windows 7 64 bit
 
 

I thought I'd already posted this. I will try with legacy BIOS once. EFI BIOS is able to detect full 2 TB hard disk.
My System SpecsSystem Spec
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 UEFI mother board - Unable to install windows




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