How to Fix Windows 10 stop code 0xc000021a

Windows 10 stop code 0xc000021a

Windows 8 and 10 were facing many errors when it was released but after some time Microsoft has started updates on a regular basis to the operating system of windows which fixes many errors , bugs and improves the workflow. But there are also plenty of errors which were not solved.

When you are doing the update part you may face an error notification Stop Code 0x000021a, this error means that your computer is in trouble and needs a restart. Because of this error you may not be able to access your computer data and boot your system. 

Don’t worry if you do not know the solution to this error. We have the stepwise methods which you can use to resolve the Stop Code 0xc000021a error. Let’s start.

Reasons behind the 0xc000021a error

The most common reason for this issue is because of an application or the driver which is misconfigured. If you have any registry corruption this will also lead to the error code 0xc000021a. Underlying software is also one of the reasons.

Other reasons leading to this error are write errors, surges disk read etc.

Method To Fix This Windows Stop Code 0xc000021a

This error makes it difficult for you to enter your computer. 

To fix this issue below we have explained the methods you need to follow, when it is fixed stop there. Let’s get started.

Method 1. Try BCD

To fix the error stop code 0xc000021a you have to restore the BCD ( Boot Configuration Data). Here just boot from your installation disc and then move to repair the computer where you select the troubleshooting advanced option. 

After that choose the command prompt, then paste all commands (each will need an enter key).

  •  bootrec /FixMbr
  •  bootrec /FixBoot
  •  bootrec /ScanOs
  •  bootrec /RebuildBcd 

Method 2. Clean reinstallation of Windows

Reinstalling your windows is a good idea if you have errors in your computer. But you should know one thing that it might delete all the files from your disk so when you start always use Diskinternals Partition Recovery. 

This program will use a system of deep disk scanning which will simply recover the information. It can recover all what you want- videos, music, documents, pictures etc. You will also find the free of cost trial version of this application which can be downloaded and then you can check the working. 

This application will also let you see the results moreover with the preview feature. You also have a chance of creating an image disk which is free and is always available.

Method 3. Repairing Disk Drive

Here you have to run a check disk scan so that you can find the errors and fix them. 

To do this you have to follow the below steps.

  1. In the first step select the shift button and then choose the option restart. If in case you would not be able to do the restart then you have to boot your windows through the removable device.
  2. When you are done with the reboot then, from the heading just choose an option,select the button Troubleshoot.
  3. Then choose the advanced option and then press the Command Prompt button.
  4. After that in your command prompt just write D in it and then press the enter.
  5. Next, type down the command and then press the enter again.
  6. If your check disk can’t proceed then press Y, it is because of the error volume used by the other process.
  7. Last, wait till the scanning is completed and then reboot the computer.
  8. Now check whether the issue still exists or is gone.


In this article we have shown the methods to cure the Stop Code 0xc000021a error in your computer. We hope that we are successful in resolving the error. If you still face any issue in any of the steps feel free to contact us.

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