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November 1st, 2016 10:00

BIOS Update to A11 from A07, now PC will not boot Windows

Hi,

Yesterday I updated the BIOS from A07 to A11. Everything seemed normal but upon rebooting, now the computer will not load Windows 10. I have an Aurora R4, and I am sure it is out of warranty at this time. By pressing F2 I am able to enter the BIOS and everything appears normal. It indicates A11 on startup.

Now, the PC will either try to load Windows and will take me to the blue screen with "BOOT DEVICE INACCESSIBLE" as the error, or will bring me to the Alien Respawn screen. The latter will not detect any problems in the Analysis, and will show checks next to Partition Table, Master Boot Record, Drives, and Boot files.

If I go through with the Windows recovery section I can get to the command prompt and using that can still see my C: drive with everything on it, so the PC still recognizes the boot drive is physically there.

When I attempt to use Bootrec.exe, I reach the point where I am able to use /scanos but it will say "Windows Installations Detected: 0" and I am unable to proceed further. I have attempted to rebuild the BCD as outlined here  but without success. I have noticed that I do not have a folder called "BOOT" on my C drive as the description would seem is necessary, but it does exist under C:\Windows.

Can anyone give me some help?

Thanks.

2 Posts

November 1st, 2016 15:00

As a follow up, it looks like even though BIOS shows the hard drive under integrated devices, it doesn't appear to be an option under the boot list, as I only have USB floppy, USB Hard Disk, USB CD/DVD, UEFI Windows Boot Manager, and CD/DVD. Is that the problem that it is missing from there?

8 Wizard

 • 

17.1K Posts

November 1st, 2016 23:00

Sounds like firmware update worked if you can still get into BIOS, and it shows A11. So, no Motherboard Bricking ... so you got that goin for ya [:)]

Failure to boot after BIOS firmware update is usually that HDD got switched (in BIOS options) from RAID to AHCI or vice-versa.

Maybe even from Legacy to UEFI.

If UEFI originally, pretty sure "Windows Boot Manager" is correct for boot. Remember, you can press F12 and try them all.

Have you tried Safe Mode?

Have you tried Recovery Partition (or Windows Recovery Tools) ?

If you have a backup of data-files ... there comes a point where you might save time doing a clean-install, drivers, etc. Maybe throw an SSD in there so you feel like there was a reason for all this.

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