Windows 7 won't start up or install after upgrade

Moloch Horridus

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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 Computer My Computer

At a glance

Windows 7 Ultimate x64
OS
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.
 
Last edited:

My Computer My Computer

At a glance

Windows 7 Ultimate x64
OS
Windows 7 Ultimate x64

My Computer My Computer

At a glance

ME/XP/Vista/Win7
OS
ME/XP/Vista/Win7
Thanks, you saved my otherwise pretty miserable day!
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64
OS
Windows 7 Ultimate x64
You are welcome.
 

My Computer My Computer

At a glance

ME/XP/Vista/Win7
OS
ME/XP/Vista/Win7
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