Help with 0xc000000e A required device isn't connected

Hi everyone,

I'm looking for some help with an error "0xc000000e A required device isn't connected or can't be accessed".

This happens when trying to boot my PC. I've tried using a bootable USB with windows RE and the automatic repair failed.

Additionally, I tried via command prompt from the windows RE to run bootrec /fixmbr, /fixboot, and /rebuildbcd. The first 2 succeed however I get an error with /rebuildbcd, “The requested system device cannot be found”.

I can see my drives in the bios, so I think physically they are okay. I cannot select my main drive under boot options, but if I go to the boot override I can select it but get the above error.

Any thoughts?

Thanks

Have you tried the 3 [three] times Power on/off method ?
First shutdown and remove all peripherals except for keyboard,mouse and monitor and only have the operating system drive connected.
Next power on and at the manufacturer's logo,power off.
Repeat that process.
On the third time,hopefully you can enter Winre and try the bootrec repair if needed.

Thanks for the reply. I tried restarting 3 times and no change.
I can't enter WinRE from my normal disk, I'm not sure why. That's why I'm using the USB drive.

Google "0xc000000e A required device isn't connected".
There are a lot of proposed solutions.
Good luck.

I did that, I haven't had any success so far. Thats why I posted here.

https://www.tenforums.com/gtsearch.p...sa.x=4&sa.y=12

Previous Ten Forums threads if you have not seen. May want to browse for ideas. Personally, no experience with that error.

Does your system boot in EFI at the moment ?

f the error "the requested system device cannot be found" occurs when you try to perform Bootrec operations using a USB installation media, it may not find the correct system partition, which causes bootrec /rebuildbcd: The requested system device cannot be found Windows 10 issue. You may try this method to set the correct partition.

Step 1. Boot from a UEFI Windows 10 installation (CD/DVD/USB) disk, and in Advanced options page, choose Command Prompt.

Step 2. Input diskpart and press Enter to list all partitions and for you to identify EFI partition. Please note that EFI partition is formatted as FAT32 type (if the EFI partition is missing, Your installation may not be in EFI mode OR you have Greater Problems).

Step 3. Input select volume 3 and press Enter (here volume 3 is the volume number of the EFI partition).

Step 4. Input assign letter=m to assign a letter to the EFI partition and press Enter. You may replace m with a letter of your choice.

Step 5. Input exit and press Enter to exit diskpart

Step 6. Then type the following commands in Command Prompt and press Enter after every command.

cd /d m:\EFI\Microsoft\Boot\

bootrec /fixboot

Step 7. Input ren BCD BCD.bak and press Enter to change the name of BDC file from BCD to BCD.bak file.

Step 8. Input bcdboot c:\Windows /l en-us /s m: /f ALL and press Enter to recreate BCD. If the letter you've assigned for the EFI partition earlier is not m, then change it in this command accordingly.

Step 9. Input exit to close Command Prompt and restart your computer.

This solution has helped many people resolve the error the requested system device cannot be found Windows 10 and rebuild BCD, especially for people who use a USB installation media to rebuild MBR.

Stolen From PartitionWizard.com

Do you get the same message when using the minimum hardware and only having one drive connected?
Some motherboards only check a few USB ports,don;t know why,when booting,so try each one just in case.
This type of problem is often caused by---Corrupt bios/uefi,or---corrupt drive,or---broken bootloader,or---other hardware.

MaloK said:

Does your system boot in EFI at the moment ?

f the error "the requested system device cannot be found" occurs when you try to perform Bootrec operations using a USB installation media, it may not find the correct system partition, which causes bootrec /rebuildbcd: The requested system device cannot be found Windows 10 issue. You may try this method to set the correct partition.

Step 1. Boot from a UEFI Windows 10 installation (CD/DVD/USB) disk, and in Advanced options page, choose Command Prompt.

Step 2. Input diskpart and press Enter to list all partitions and for you to identify EFI partition. Please note that EFI partition is formatted as FAT32 type (if the EFI partition is missing, Your installation may not be in EFI mode OR you have Greater Problems).

Step 3. Input select volume 3 and press Enter (here volume 3 is the volume number of the EFI partition).

Step 4. Input assign letter=m to assign a letter to the EFI partition and press Enter. You may replace m with a letter of your choice.

Step 5. Input exit and press Enter to exit diskpart

Step 6. Then type the following commands in Command Prompt and press Enter after every command.

cd /d m:\EFI\Microsoft\Boot\

bootrec /fixboot

Step 7. Input ren BCD BCD.bak and press Enter to change the name of BDC file from BCD to BCD.bak file.

Step 8. Input bcdboot c:\Windows /l en-us /s m: /f ALL and press Enter to recreate BCD. If the letter you've assigned for the EFI partition earlier is not m, then change it in this command accordingly.

Step 9. Input exit to close Command Prompt and restart your computer.

This solution has helped many people resolve the error the requested system device cannot be found Windows 10 and rebuild BCD, especially for people who use a USB installation media to rebuild MBR.

Stolen From PartitionWizard.com

Thanks for the reply. I had seen that guide, however I have an MBR disk and am not booting with EFI, so I wasn't sure how to follow it.

But, I think you are correct that bootrec is not finding the correct files.

I did find this though that recommends bcdboot instead of bootrec:
https://social.technet.microsoft.com...path-not-found

This worked for me. There is also a comment that bootrec doesn't work on later versions of Windows 10, I'm not sure if that's true or not.

- - - Updated - - -

joeandmarg0 said:

Do you get the same message when using the minimum hardware and only having one drive connected?
Some motherboards only check a few USB ports,don;t know why,when booting,so try each one just in case.
This type of problem is often caused by---Corrupt bios/uefi,or---corrupt drive,or---broken bootloader,or---other hardware.

Yes I think you are correct, I believe in my case this was a bad bootloader - although I don't know what caused it.
I did try unplugging all but my boot drive and recovery USB, and different USB ports.