Bdtyktl

Introduction

Hello, I'm running multiboot installation on machine with UEFI. I have Windows 10 and Ubuntu installed, managed by Grub at startup and I have laptop working like this for about half a year. By the time... I'm using Windows 10 very rarely I rather use linux for my everyday work. But yesterday I need to, and very disturbing BSOD appeared.

Recovery

Your PC couldn't start properly

A required device isn't connected or can't be acessed

Error code 0xc0000001

• I can't log into safe mode. System just hangs at the boot screen and shutdown laptop itself after couple of minutes.


• I haven't made any hardware changes ever.


• I haven't made any driver changes.


• I do not mess up with any Windows directory but I have Windows partition mounted in Ubuntu.


• I do not touch EFI partition recently.


• Last time I have using Windows installation is about 2 weeks ago.


• System sometimes instead of showing BSOD, hangs at the boot screen.


• restore default BIOS settings doesn't change anything

I have googling for fixes for hours. So I made USB with my Windows 10 installation (exactly the same from which I have Windows installed) and run Windows Recovery Envoirnemt. My laptop is hp 8560w.

Windows Recovery Environment

System restore

I got message. "To use System Restore, you must specify which Windows Installation to restore. Restart this computer, select an Operating System and then select System Restore."

Automatic repair

Fails - with no information in event log.

Reset your pc

I got message. "The drive where Windows is installed is locked. Unlock the drive and try again."

Windows Command Prompt

S: is my EFI partition

chkdsk c: /f /v /r /b /offlinescanandfix

no problems found

sfc /scannow /offbootdir=*s: /offwindir=c:windows 

no problems found

Bootrec /fixmbr

nothing changes

Bootrec /fixboot

nothing changes

Bootrec /scanos

windows found

Bootrec /rebuildbcd

message "The requested system device cannot be found."

del s:* /s /q

bcdboot c:windows /s s: /f UEFI

nothing changes
I even format EFI partition and make it again.

Summary

My bcdedit /store s:EFIMicrosoftBootBCD

Ubuntu still works fine so AFAIK it's not hard drive or GPT issue.
I can't login to recovery mode by Shift + F8 but I had never could. So I don't think it matters especially that fixing by Windows Recovery Mode from USB work neither.
It seems to be ridicolous for me that Microsoft provide not even detail but in fact any useful information about why system fail to boot.
Pleas do not tell me to contact hp support because I really doubt that they help me.

Is there any other way to fix it or reinstalling Windows is my only chance.

Error code 0xc0000001 on Windows 10 has been reported by some users when attempting to install Windows 10. When you encounter this error, the setup will be on a loop and the error message will keep popping up.

Here are some methods that will help you fix the error code 0xc0000001 while trying to install Windows 10. Do not perform these methods unless you’re absolutely confident you can do it properly. Otherwise, you might make things worse.

Method 1: Convert drive/partition to GPT

If you need to manually wipe the drive and then convert it to GPT, follow these steps:

Step 1: Power down your computer and put your Windows 10 installation DVD or USB drive

Step 2: Boot your computer to the USB or DVD key in UEFI mode.

Step 3: Once you’re at the Windows 10 Setup, press the Shift+F10 keys. This will open the command prompt window.

Step 4: Open diskpart tool from CMD. Just type diskpart and enter.

Step 5: Then, type list disk on CMD again. Press enter. This will allow you to identify your computer’s drive that you want to reformat.

Step 6: Choose the drive and reformat it by typing the following on the command prompt:

select disk (press enter)

clean (press enter)

convert gpt (press enter)

exit (press enter)

Step 7: Proceed with the Windows 10 Setup installation.

Note: when you’re prompted to choose the installation type, make sure to choose Custom. Then, choose unallocated space and click Next. This will automatically start the installation of Windows 10.

Method 2: Use Media Creation Tool to Perform Automatic Repair

Automatic Repair is a Windows feature/utility that allows you to fix certain system problems preventing you from installing or starting Windows. It works by scanning your computer system for any potential problem and tries to fix it.

Step 1: Download the Media Creation Tool

Step 2: Boot your computer using the Windows 10 DVD, or the System Repair disc. When you’re asked to press any key to boot, just press any key on your keyboard.

Step 3: Choose the right time and the keyboard type.

Step 4: Click Repair your computer. You’ll see this at the lower left corner on your screen.

Step 5: Choose Troubleshoot from Choose an option screen

Step 6: Click advanced options

Step 7: Choose automatic repair

This will automatically run the utility.
You can find a few other suggestions on how to rectify that error message in this article.