Dual boot problem: unable to load winload.efi

Celery · Nov 13, 2025

hispanico said:
Do I use EasyBCD?

No, just use the bcdboot command.

Set up or repair the boot menu on a dual-boot PC. If you've installed more than one copy of Windows on a PC, you can use BCDBoot to add or repair the boot menu.

When setting up a PC to boot more than one operating system, you may sometimes lose the ability to boot into one of the operating systems. The BCDBoot option allows you to quickly add boot options for a Windows-based operating system.

BCDBoot Command-Line Options

learn.microsoft.com

hispanico · Nov 13, 2025

Celery said:
No, just use the bcdboot command.

View attachment 152727

BCDBoot Command-Line Options

BCDBoot Command-Line Options

learn.microsoft.com

Ok thank again...in prefer from windows and in my case i can use this command:

bcdboot C:\Windows ...right ?

P.S.
But sorry I don't think it's necessary do this, because, as you can see from the image, it already appears at startup, even if the second boot doesn't work but as per your explanations, I'll fix it, or am I wrong?

So I should eventually change the order between the two boot

Kira

zbook · Nov 13, 2025

Run Memtest86+ for 8 or more passes > take pictures > post images or share links

Memtest86+ | The Open-Source Memory Testing Tool

Just 1 error is a test fail and testing can be aborted.

The more the passes the better the testing conditions.

It sometimes takes passes into the 20's to detect malfunctioning RAM.

The RAM can be tested all at one time or one at a time in the same DIMM.

Memtest86+ | The Open-Source Memory Testing Tool

MemTest86+ - Test RAM

hispanico · Nov 13, 2025

Hi Celery i am trying now the procedure but when statup from USB with windows for this

"Boot from the Windows USB flash drive. If the USB flash drive appears twice in the boot menu — once with the UEFI prefix and once without — you must choose the one with the UEFI prefix. The bcdboot command will automatically identify the FAT32-formatted EFI system partition when the USB flash drive is booted in UEFI mode.
Run the following commands at the Windows Recovery Environment (WinRE) command prompt."

I dont see Windows Recovery Environment for command prompt, i have only install windows or restore pc...

Thank
Kira

Scott · Nov 13, 2025

hispanico said:
I dont see Windows Recovery Environment for command prompt

Press Shift+F10 to open command prompt.

Celery · Nov 13, 2025

hispanico said:
I disable FastBoot on my Aus Hero 870x and using boot manager now the windows on ssd load without any problem... THANK!!!!!!!!

So you have both versions of Windows booting now, and you no longer see the "winload.efi - 0xc000000e" error? If so, then you don’t need to run the bcdboot command. Do not enable Fast Boot in the BIOS.

If you still have the "winload.efi - 0xc000000e" error, then follow the instructions in my previous post: "Boot from a Windows 11 installation USB flash drive." Then run both bcdboot commands.

Do you now just want to change the boot order in the dual-boot menu? If so, go to: "Change defaults or choose other options" > "Choose a default operating system" > select the operating system you want as the default.

hispanico said:
I dont see Windows Recovery Environment for command prompt, i have only install windows or restore pc...

Press Shift+F10 to open command prompt or select "Repair my PC" > "Next" > "Troubleshoot" > "Command Prompt".

edit: Not all text displayed in Windows Setup is a literal translation from English.

hispanico · Nov 13, 2025

Celery said:
So you have both versions of Windows booting now, and you no longer see the "winload.efi - 0xc000000e" error? If so, then you don’t need to run the bcdboot command. Do not enable Fast Boot in the BIOS.

If you still have the "winload.efi - 0xc000000e" error, then follow the instructions in my previous post: "Boot from a Windows 11 installation USB flash drive." Then run both bcdboot commands.

Do you now just want to change the boot order in the dual-boot menu? If so, go to: "Change defaults or choose other options" > "Choose a default operating system" > select the operating system you want as the default.

Press Shift+F10 to open command prompt or select "Repair my PC" > "Next" > "Troubleshoot" > "Command Prompt".

edit: Not all text displayed in Windows Setup is a literal translation from English.

Hi mate and again thank you
Yes without Fastboot i have not problem to launch from boot manager windows located in SSD
But in any way i searh to solve this, using your procedure, so i can set fastboot in my motherboard

So I finally with Shift+f10 enter in command prompt, but when execute this commands
NVME is primary disk with windows
SSD is second disk with windows

bcdboot 1:\Windows
bcdboot 5:\Windows
or
bcdboot L:\Windows
bcdboot C:\Windows

not execute but appear as screenshot annexed

Where i wrong ?

Thank
Kira

Celery · Nov 13, 2025

If disabling Fast Boot resolves the “winload.efi – 0xc000000e” error, then the issue was not related to the BCD, and bcdboot would not have helped. In that case, you should leave Fast Boot disabled.

However, if you still want to run the bcdboot command, you can use:

bcdboot C:\Windows
bcdboot E:\Windows

-or-

bcdboot E:\Windows
bcdboot C:\Windows

You can always change the default operating system in the dual-boot menu afterward, so the order in which you run the commands does not matter.

hispanico · Nov 13, 2025

Celery said:
If disabling Fast Boot resolves the “winload.efi – 0xc000000e” error, then the issue was not related to the BCD, and bcdboot would not have helped. In that case, you should leave Fast Boot disabled.

However, if you still want to run the bcdboot command, you can use:

bcdboot C:\Windows
bcdboot E:\Windows

-or-

bcdboot E:\Windows
bcdboot C:\Windows

You can always change the default operating system in the dual-boot menu afterward, so the order in which you run the commands does not matter.

View attachment 152778

Ok i follow you...thank

But when i give command

bcdboot C:\Windows
bcdboot E:\Windows

-or-

bcdboot E:\Windows
bcdboot C:\Windows

nothing happened, as if it was not receiving the correct command... see image

Kira

Celery · Nov 13, 2025

hispanico said:
nothing happened, as if it was not receiving the correct command... see image

diskpart
list volume (check the volume letters of both Windows partitions)
exit

hispanico · Nov 13, 2025

Celery said:
diskpart
list volume (check the volume letters of both Windows partitions)
exit

I write

diskpart
list volume
...and after

bcdboot C:\Windows
bcdboot E:\Windows

-or-

bcdboot E:\Windows
bcdboot C:\Windows

so i must use letter volume ? i try also this but it seems to me the same result does not do or write anything

Thank
Kira

Celery · Nov 14, 2025

In one of my earlier posts, the screenshot shows an example.

So, run the following commands:

Code:

diskpart      – opens the DiskPart tool

list volume   – shows the volume numbers/letters of all partitions

exit          – closes DiskPart

bcdboot c:\windows

bcdboot e:\windows

And then restart your computer.

Dual boot problem: unable to load winload.efi

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