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Windows 7: Windows 7 won't start up or install after upgrade

14 Dec 2012   #1
Moloch Horridus

Windows 7 Ultimate x64
 
 
Windows 7 won't start up or install after upgrade

Hi,
First post here and I'd like to ask forgiveness if this has been discussed before, it's just that none of the discussions I've read helped in this case.

So, I had perfectly working Windows 7 Ultimate x64 install on my system this morning. Today I upgraded my machine to following setup:
Mobo: Gigabyte Z77X-UD3H
CPU: Intel I5-3570K
GPU: MSI GeForce GTX 660
Drives: 1 SSD and 3 spinners + DVD-RW, all on SATA
BIOS version: F11

Trying to boot from the SSD where my current Windows installation resides I either get straight to bluescreen and instant reboot. If going to the repair option after this crash Windows boots to it just fine, but can't solve my startup woes. I can post details later if needed.
I ran chkdsk from the prompt and it only said that some of the non-allocated space was marked as allocated but was now repaired. The DOS-prompt has no problems seeing the disks or accessing them.

Now this gets just stupid.

Trying to re-install Windows 7 from the very same USB-stick I've used before I can only get as far as Windows asking to locate CD/DVD drivers. Tried Gigabyte's provided DVD but nothing works, tried searching Windows install disk directories, but no. Whatever I choose the installer always says it can't find devices.

Seems like a driver issue to me, but how to resolve it? It just occurred to e that the Windows stick I have is pre-SP1 so maybe it probably doesn't have the drivers for my hardware, but why don't the Gigabyte DVD ones work either?

Any help, please?


My System SpecsSystem Spec
.
14 Dec 2012   #2
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote:
Today I upgraded my machine to following setup:
From what?

If from a Non-uEFI BIOS to a uEFI BIOS.

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with
or
UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with
My System SpecsSystem Spec
14 Dec 2012   #3
Moloch Horridus

Windows 7 Ultimate x64
 
 

I had EVGA 780i SLI motherboard before this.

With this BIOS, it's most probably not UEFI, right?

Edit: I've created my Windows 7 install stick pretty much like the tutorial on how to create Bootable UEFI Flash drive shows, if I remember correctly. How can I tell wether or not it is GPT or MRB since my BIOS options list other disk as P: "XXXX" and the Flash drive is just by name?

The DOS prompt doesn't seem to list efi/ directory, but could it be hidden or something? Oh, of course it's not since my former BIOS wasn't UEFI, am I right? Can I even create UEFI bootable Flash drive without UEFI booted system?

As you can probably tell by now, I'm way over my head here.
My System SpecsSystem Spec
.

14 Dec 2012   #4
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

The Gigabyte Z77X-UD3H has a uEFI.



Clean the HD Drive, using Step one in this tutorial:
SSD / HDD : Optimize for Windows Reinstallation
Than type> convent gpt
& than Reboot PC to install.


UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with
UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with


Boot the DVD/USB drive from the uEFI drive.

Windows 7 won't start up or install after upgrade-windows-8-downgrade-006-sb.png


My System SpecsSystem Spec
14 Dec 2012   #5
Moloch Horridus

Windows 7 Ultimate x64
 
 

Thanks, you saved my otherwise pretty miserable day!
My System SpecsSystem Spec
14 Dec 2012   #6
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

You are welcome.
My System SpecsSystem Spec
14 Dec 2012   #7
gregrocker

 

Quote   Quote: Originally Posted by theog View Post
Than type> convent gpt
What is this command? I've seen it posted several times now.

Do you mean "convert GPT?"
My System SpecsSystem Spec
14 Dec 2012   #8
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Quote   Quote: Originally Posted by theog View Post
than type> convent gpt
what is this command? I've seen it posted several times now.

Do you mean "convert gpt?"
Windows 7 won't start up or install after upgrade-windows-8-downgrade-011-sb.png

command in full

Windows 7 won't start up or install after upgrade-uefi-010-1.png


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 Windows 7 won't start up or install after upgrade




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