Ballsed up my Windows 10 install. Help?!

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Hi guys, I gone done and goofed and now I need to grovel at the altar of the OC forum experts to see if any of you know a way out of my predicament!

So long story short, I upgraded to Windows 10 and installed everything, install went perfectly and I finished installing all my apps, so far so good. Once I had all my ducks in a row I decided to get overclocking; now I'm running x58 hardware here, motherboard is a G1 Guerrilla and processor is a xeon 5650. Overclocking went well, got to 3.8ghz stable but was having some stability issues pushing for the magic 4.0 so in order to be sensible I decided I'd go back to fail safe defaults in the BIOS and begin from scratch as I'd got myself tied up in knots. From there the excrement contacted the fan.

Essentially what I think has happened is the fail safe defaults were somehow linked to a windows 7 BIOS setting and when I reset windows gave me 0xc:0000428 : \windows\system32\winload.exe Windows cannot verify digital signature for this file.

Since it's a new install I (stupidly) have not yet made a recovery disk and to be honest had absolutely zero idea that a simple BIOS reset could make the file magically corrupt, or even that the BIOS was that inextricably linked to the os! Being x58 I believe I can't override digital signature verification through the BIOS and cannot enter windows 10 or even my old windows 7 install.

So.. Anyone got any ideas because the idea of reinstalling windows 7 and doing all the updates, downloads and reinstalls fills me with dread. Also, hoping against hopes here, anyone with a G1 Guerrilla running windows 10 want to send me a windows 10 recovery disk over dropbox?!

Hoping you can help me, cheers guys!
 
after you reset the bios did you change the sata ports back to achi as I think the default is IDE.

I have a X58 board (Asus P6X58D-E Intel) with a I7 950 and using the sata 2 ports for my SSD on W10
 
Yeah, initially it was as you say, set to IDE so I hoped switching to AHCI would fix it, but no luck unfortunately. Thanks for the suggestion though :)
 
Have you changed both the JMicron and Marvell controllers to AHCI?

That error is normally caused by the BIOS setting

Secure Boot in UEFI firmware

but I don't know if your BIOS has this (unless it is a newer revision with updated BIOS).
Check for that and disable it/set to Other OS.
 
sata 2 and 3 are set separately on my mobo but ive got my sata 3 ports disabled as im not using them.

if you are using sata 3 then make sure they are also set to achie and not IDE
 
Had to just bite the bullet and do a re-format and re-install. Luckily I was able to do a fresh install on a USB with the windows media creation tools and windows managed to automatically put back a bunch of programs and validate my install. Who'da thunk skydrive would be so helpful eh?

Thanks for the suggestions anyway guys, at least it taught me the lesson of making a mirror IMMEDIATELY after installing a new os!
 
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