Error code: 0xc000000f - Windows 8.1

Question

I downgraded from Windows 10 to 8.1 earlier and after rebooting I got the error message below.

'Recovery

Your PC needs to be repaired

The boot configuration date for your PC is missing or contains errors

File \EFI\Microsoft\Boot\BCD

Error code: 0xc000000f

I have tried 8.1 installation media via USB as my Vaio doesn't have an optical drive and each time I got in to it I get that blue screen.

What can I do to resolve this? any help would be gratefully appreciated.

Answer 1

Hi,

Thank you for your update on the issue.

Glad to know that the steps you tried help you to resolve the issue.

For UEFI and Legacy.

In a Windows 8 UEFI computer, the UEFI BIOS can be user configured for the following possible Boot scenarios:

(i) With UEFI Boot = enabled and Legacy Boot = enabled, the firmware will first attempt to boot through UEFI without secure boot, failing which it switches to Legacy BIOS boot. This configuration can be used for assembled computers with Dual OS of which one is UEFI compatible and the other is not.

(ii) With UEFI Boot = enabled and Secure Boot = enabled, the firmware permits only Secure UEFI boot, by validating the signature of all software components executing within UEFI. Booting will get terminated if signature validation fails at any point. This configuration is intended for Windows 8 laptops where the hardware remains permanently sealed.

(iii) With UEFI Boot = disabled and (CSM/Legacy/BIOS) Boot = enabled, the computer will boot into a BIOS environment. Meant for computers using MBR partition, like older PCs upgrading to Windows 8.

You can enable / disable Secure Boot with UEFI Boot. Legacy Boot will automatically get enabled, Either if UEFI Boot Or if Secure Boot is disabled. This is because Legacy Boot must become the default boot without UEFI Boot, and Legacy Boot must act as an alternative to the UEFI Boot without Secure Boot.

Refer the link below for more information:

https://technet.microsoft.com/en-us/library/hh825112.aspx?f=255&MSPPError=-2147217396

Please feel free to reply, in case you face any other issues with Windows in future. We'll be more than happy to assist you again.

Thank you for sharing.

Answer 2

I believe I have found a solution, however i'm not sure it's the right one, I went in to the BIOS went over to 'Boot Configuration' and changed it to 'Legacy' and once I did that I was able to re-install windows, is it safe keeping it like this?

Answer 3

It says;

'Failed to transfer logged messages to the event log within status 50'

Answer 4

How do I make sure C: is my boot drive?