Windows 10: Unable to boot PC to OS

I am unable to boot my PC to OS, only to BIOS and Safe Mode. I have downloaded a Windows 10 install to USB, but have been unable to select it as a boot option. The exact error code displayed is 0xc0000001. I am running an Alienware PC.

:)

 

Unable to boot the PC

Hi,



Thank you for writing to Microsoft Community Forums.



We understand your concern as you are unable to boot the PC. In order to get clarity and to assist you accordingly, please reply with the answers to the questions below:

• What is the Windows 10 version and Build installed? (Type
  winver in Windows search/Run command)
• What is the make and model of the PC?

• 
  Are you aware of any changes on the PC prior to this issue?
  

I would suggest you to export and delete the BCD store and rebuild the BCD store. Refer the steps mentioned below:

1. Create
   a bootable media and boot the PC using the media.
2. On
   the initial setup screen, select the language and other
   preferences and click on Next. (If you don't see the setup screen, your PC might not be set up to boot from a drive. Check your PC manufacturer's website for info on how to change your PC's boot order, and then try again.)
3. Now,
   click on Repair your computer.
4. On
   the System Recovery Options screen, select Troubleshoot>
   Advanced options > Command Prompt.
5. Now
   type in the commands and hit Enter:
   
   bcdedit /export C:\BCD_Backup
   
   c:
   
   cd boot
   
   attrib bcd -s -h –r
   
   ren c:\boot\bcd bcd.old
   
   bootrec /RebuildBcd

Regards,

Aditya Roy

Microsoft Community – Moderator

 

Unable to boot the computer.

Hi Samid,

Thank you for posting your query on Microsoft Community.

Before we proceed, we would require more information to assist you further.

• 
  What is the make and model of your computer?
  

I suggest you check if you are able to boot into Windows Recovery Environment using installation media. Follow the steps provided below and check.

• • Insert the installation USB and boot Windows 10 from it.
  • In the ‘Windows setup’ page select the ‘language to install’, ‘Time and currency format’ and the ‘keyboard or input method’ and click on ‘next’.
  • Click on ‘Repair your computer’ and select ‘Troubleshoot’.

Check if you are able to boot to this window. If you are unable to boot to this window, I suggest you to contact the manufacturer and check.

Hope this information is helpful. Reply us with this information to assist you further.

Thank you.

 

Windows update failed and unable to boot

Hi Chrissy,

To assist you better help us with the information below.

• Have you made any recent software/hardware changes to the computer?
• Do you get any error message or code when trying to boot into the computer?

When installing updates it puts message “Do not shut down your machine”, if you unplug the AC adapter or turn off the computer Chances are:

• Windows resuming the installation process next time you shutdown.
• A non-vital program file becomes corrupted and causes some feature of the OS to become unusable and crash.

As an initial step I would suggest you to unplug all external devices if connected and then try to boot the computer by plugging in the AC adapter and check if you are able to boot the computer.

If the computer boots make sure all the updates are installed and then you can login to user Interface.

If you still not able to unable to get the in Windows Bootable environment I Would suggest you contact your manufacturer.

Get back to us if your require more help on this query.

Thank you.