7 Solutions for Windows Stop Code 0xC000021A

This error makes it problematic for users to use their devices for their planned determinations. This error is a delinquent for users who need to broaden their tasks rapidly. Are you looking for the finest solutions to this problem? This guide will show you seven ways to fix this matter.

What Is Windows 10: BSOD Error 0xC000021A?

Mutual faults can be called many names, counting death errors, stop code, and other errors. This will display a blue death screen with an announcement that your computer has encountered a matter and must be restarted. It specifies that there is a problem with your device.

This Windows error can originate in all versions of Windows, not just one. It doesn’t matter what version of Windows you use, this error may have happened to you. The foremost question is why this error occurs in all systems. To make this clearer, let’s look at a few of the reasons why this error happens.

  • Software or programs that are exaggerated.
  • Application compatibility matters with third-party applications
  • Registry harm to the system
  • The library is not loaded totally

There are numerous reasons for Windows stop code 0xC000021A. These are the most likely reasons for this error. It is now time to find out how to do this problem and endure using your device without disruption.

How to Recover Data Before Fix Error 0xC000021A

We endorse that you install salvage software before fixing Windows step mistakes or any other error. While you’re trying to fix these glitches, it is fairly mutual to lose your data. To guarantee that your data is not lost, it is best to add a program to the problem before you solve it.

EaseUS data recovery wizard is one we extremely acclaim. It doesn’t matter what Windows version you have; it will permit you to improve all your data. The boundary of this software is well-matched with all Windows versions.

This program is adaptable and has many topographies. This program permits you to enjoy special features that are not obtainable in other data recovery programs. Let’s rapidly take a look at the best landscapes.

  • This program will recover removed files in a matter of minutes. Because of its rapid algorithm, it will not take much time.
  • This tool will not disturb your data. This tool will recover your files in their original format, without overwriting them.
  • It will not ask you to reboot Windows or reinstall Windows.
  • The boundary of this data recovery software is very user-friendly.

We endorse EaseUS data recovery wizard WinPE due to its progressive features. This product will not disappoint you in improving your data.

  1. Create a bootable disk

Start EaseUS Data Recovery Wizard. Select “Crashed PC Recovery” then click “Go to Recovery”.

Click “Create” to select an unfilled USB drive for the bootable drive.

Warning: EaseUS Data Recovery Wizard will wipe all data from the USB drive after you create a bootable disc. It is important to back up your data before you flinch.

  1. Boot your computer from the bootable USB

Assign the bootable drive to the computer that isn’t striking and then alter the BIOS boot arrangement. It works for most users if they reboot their computer and hit F2 instantaneously to enter the BIOS.

To boot the computer from “Removable Devices”, (bootable USB drive) set it to another Hard Drive. To save and exit, press “F10”.

  1. Recover data from a crashed system/PC

After you have effectively booted from the EaseUS Data Recovery Wizard Bootable Disk, select the drive that you wish to scan for any lost files. You can preview and save the files that you need in a harmless place.

7 Best Ways to Fix Windows Stop Code: 0xC000021A

Expectantly, the above information has given you some understanding of the causes of Windows 10 BSOD Code 0xC000021A. We will deliberate the greatest ways to fix this fault in this section. You may not find the accurate solution for you. You may need to try all of the solutions until you find the one that works greatest for you.

  • Disconnect or Unplug All External Devices

Meddling from exterior devices is a common reason for this error, as we have previously declared. You can solve this error by unplugging each exterior device one at a time. It is greatest to take a look at all the devices and endure unplugging or separating them.

Unplug the device and restart it. If the error is determined, an outdoor device likely instigated the problem. You should endure trying the next steps if your device still displays Windows stop error code 0xC000021A.

  1. Repair Corrupted System Files from the Installation 

You can also overhaul despoiled files to get freed of this bluescreen of death error. This procedure is informal and can be done in a few simple steps. These are deliberated on in the next section.

Please note: To make a Windows media creator, you must first generate it and then boot from it. Follow the below steps:

  1. Choose the language partiality. Click “Repair Your Computer”

2 Click on “Troubleshoot”, then select the progressive options. Click “Command Prompt”.

3 Open the Command Prompt and type C: /r. Then press Enter.

4 Type into sfc/scannow, and then click the Enter button.

After you’ve accomplished the above steps, make sure to restart your computer. This will permit your system’s functioning system to rearrange itself and let you know if the error has been secure.

  1. Update Device Drivers to Fix the BSOD Error

Most users overlook updating their device drivers. Most users don’t update their drivers, which can cause them to get this error and other issues. To resolve the problem, you can update device drivers. These are the steps you should follow to do this.

1 Boot in Safe Mode in Windows 10.

2 Right-click the start button to open a menu bar

Select Device Manager from the given options.

4 Double-click on the device option to open a new small window.

5 Now, click on the Driver option from the menu bar and choose Update Driver.

6 Click “Search automatically for driver software”.

7 Tap on the option connected to updates given at the bottom of the new window.

To make your device up-to-date, it will commence updating outdated drivers. Your system may resume working usually after error 0xC000021A is determined.

  1. Rebuild the Boot Configuration Data (BCD) to Fix Code 0xC000021A

This error may be triggered by BCD ( boot Configuration Data ). It is answerable for Windows 10 startup processes. This error can be secured by you. Follow these steps to get freed of the original media.

1 Steer to the Troubleshooting menu. Next, look for Progressive Options.

2 Type the following command in the Command Quick and press Enter.

  • bootrec /fixmbr
  • bootrec /fixboot

These steps will help you solve Windows 10 BSOD code 0xC00021A. It will reconstruct your complete Windows configuration.

  1. Disable the Driver Signature Enforcement Feature

Many people download and install software that isn’t digitally signed. This driver avoids the installation of such software. This fault can also be displayed on your device. These are the steps you need to take to restrict this driver.

  • Keep pressing F8 and F11 to twitch your computer
  • Follow this track to boot with the recovery option: Troubleshoot > Advanced Options >> Startup Settings >> Restart
  • Keep pressing F7 to restrict the driver and restart your system

This will make it conceivable for Windows to stop error 0xC000021A. It is the most recurrent motive for this mistake.

  1. Reset BIOS to Fix Code 0xC000021A

BIOS reset can solve this problem and keep you from other matters. You should rearrange your BIOS to guarantee security. Here are some tips to help you do this.

  1. In the troubleshooting menu, find and choose UEFI Firmware Settings.
  2. Tap the Restart button for the BIOS system to arrive.
  3. Find the option “Reset Configuration Data”to achieve this task.

  1. Save the New settings and restart your computer for smooth working.

You can reset your device’s functioning system by following these ladders. This will defend your data from unsanctioned admittance.

  1. Perform a System Restore to Fix Code 0xC000021A

A system restoration in Windows 10 is another operative way to fix Windows 10 BSOD code 0xC000021A. To confirm if the error is determined, you should have already reinstated the system. These are the steps to securely restore the system.

1 Go to Advanced Startup and look for “System Restore ”. 

2 Select a point to reestablish your system.

3 Select a point to reestablish your system.

You don’t have to practice this procedure, as the directions on-screen will make it easy for you. In its place of searching for videos, you can just read them.


We have deliberated in detail all the approaches that can be used to fix Windows stop code C000021A. These approaches can be used one by one to reestablish your device to a normal state.

You shouldn’t stop the search until you find the faultless solution. You may need to try numerous dissimilar shots before you find the best one.

Windows Stop code 0xC000021A FAQs

For extra support, you can read the regularly asked questions.

What does 0xC000021A refer to?

This error can have numerous names, including “Death Screen”, “Windows Stop Code”, and many others. This error will display a blue screen and notify you that your computer has encountered a problem.

How can you stop the blue screen from death?

You can use the following list of fixes to stop BSOD Windows 10. You can use any of the resolutions above.

What is a greenscreen of death?

Windows Green Screen is an error that can cause harm to the core rudiments of your computer and reduce your computer’s impracticability.

How can I fix kernel-mode heap corruption?

There are many ways to fix kernel-mode mound corruption, but updating device drivers is the greatest. Keep updating drivers for dissimilar fields and tasks, such as graphics.

I hope you find this article helpful. If you have any other issues or matters to consider, we will love to hear from you.


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