Как исправить ошибку 0xc000021a windows 10

Наиболее распространённая проблема при запуске Windows 10, с которой сталкивался практически каждый пользователь – синий экран смерти с кодом ошибки 0xc000021a. Этот код остановки может появиться в самых разнообразных случаях: при неверной установке или удалении системных файлов, драйверов, важных программ, при резком выключении компьютера из сети, при неправильном проведении обновления операционной системы и т.д.
Важно то, что ошибка 0xc000021a при запуске Windows 10 не лечится простой перезагрузкой системы.

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Причины появления ошибки 0xc000021a Windows 10

Наиболее частыми причинами кодом остановки 0xc000021a являются:

1. Неверная установка или обновление ОС и драйверов.
2. Неполадки в файлах системы.
3. Проблемы с целостностью жёсткого диска.
4. Воздействие вирусов или другого программного обеспечения, представляющего угрозу для ПК.

Выделяют два файла, при нарушении целостности которых можно столкнуться с кодом остановки 0xc000021a. Это файлы Winlogon.exe и csrss.exe.

Первый отвечает за запуск и выключение ОС и чаще всего повреждается при участии вредоносного ПО или из-за неверно выполненного обновления.

Второй файл наиболее уязвим для вирусов и напрямую связан с клиентом Майкрософт.

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Исправление ошибки 0xc000021a в Windows 10

Надпись «Fatal system error stop c000021a» сопровождается всё тем же синим экраном, не поддающимся простой перезагрузке. Справиться с ней можно путём перезагрузки с последней удачной конфигурацией или же восстановлением всей системы, используя загрузочный образ с диска или флеш-накопителя. Главное, чтобы он был верно отформатирован.

Рассмотрим все способы исправления ошибки при запуске Windows 10, выдающей синий экран BSOD.

Отключение проверки цифровой подписи драйверов

Чаще всего способом, как исправить ошибку 0xc000021a Windows 10, является отключение проверки цифровой подписи у драйверов.

Эта мера непостоянная и чаще всего используется, если ОС неправильно загрузилась из точки восстановления, а драйверы или обновления установились неверно. Обычно после этого компьютер загружается, но если последующие его запуски снова выдают ошибку 0xc000021a, придётся проводить удаление или откат установленных обновлений к прежней версии.

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Удаление недавно установленного ПО

Зачастую именно неверно поставленное обновление или изменение программного обеспечения является причиной появления ошибки 0xc000021a в Windows 10. Если произошло внезапное выключение компьютера от сети из-за скачка напряжения или в момент загрузки отключился интернет, то ПО будет установлено некорректно, и при следующем запуске появится ошибка.
В этом случае необходимо все операции проводить из безопасного режима. Для этого:

1. Нажмите “Win + i”
   
2. Войдите в “Обновление и безопасность”
   
3. Зайдите в “Восстановление“, затем в “Особые варианты загрузки”
   
4. Выберите параметры запуска, перезагрузку и во время перезагрузки зажмите F7 для входа в безопасный режим. Через ещё одну перезагрузку ПК запустится в безопасном режиме.
   
5. Потом снова перезагрузите ПК
6. Зайдите в “Панель управления”
   
7. Зайдите в «Программы и компоненты».
   
8. Удалите все приложения и программы, которые устанавливали недавно.
   
9. Выберите просмотр установленных обновлений.
   
10. Удалите все недавние обновления.
    
11. Проведите перезагрузку. Если не помогло – переходите к следующему способу.

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Для устранения ошибки 0xc000021a Windows 10 отключите периферийные устройства

В редких случаях ошибка 0xc000021a на Windows 10 решается гораздо проще: достаточно отключить все внешние устройства, подсоединённые к ПК. К ним относятся флеш-накопители, динамики, мышки, клавиатуры, мониторы, модемы и т.д.

Отсоедините всё от выключенного компьютера, и оставьте его на 5-10 минут, после чего запустите его снова. Если синего экрана не возникло – проблема крылась в каком-то из периферийных устройств.

Загрузка последней удачной конфигурации

Ошибку 0xc000021a на Windows 10 можно решить путём отката к последней работоспособной версии, когда не были установлены программы или обновления, которые привели к синему экрану. Для этого:

1. Перезапустите ПК.
2. Нажмите несколько раз F8, пока не перейдёте в дополнительные варианты загрузки.
3. Выберите в нём последнюю удачную конфигурацию.
   
4. Подождите, пока компьютер не запустится. Откат изменений проходит примерно на сутки, но может быть больше.

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Сброс BIOS

Этот метод работает только для ПК, которые позволяют легко добраться до материнской платы. В большинстве ноутбуков метод неприменим, поскольку разобрать компьютер и отключить батарею от материнской платы в ноутбуке, скорее всего, не получится. Либо после этой процедуры ваше устройство слетит с гарантии, если оно новое.
Чтобы провести сброс BIOS, необходимо:

1. Выключить компьютер от сети.
2. Провести отсоединение всех подключённых к нему устройств.
   
3. Отвинтить крышку системного блока.
4. Вытащите батарею и подождите от 5 до 10 минут.
   
5. Установить батарею и плату обратно.
6. Завинтить крышку системного блока, подключить устройства и запустить компьютер. Если и это не помогает, переходите к следующему способу.

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Замена всех повреждённых файлов реестра резервными копиями

Это один из вариантов, как исправить ошибку 0xc000021a на Windows 10. Лучше всего этот способ подходит в тех случаях, когда на компьютер попали вирусы и другое программное обеспечение, представляющее угрозу для ОС.

Чтобы заменить файлы, понадобится диск или флеш-накопитель, на котором верным способом установлен образ Windows 10. Если таковой имеется, тогда следуйте инструкции:

1. Вставьте флешку или диск.
2. Переставьте в BIOS  приоритет на внешний накопитель (для входа в BIOS потребуется выключить и включить ПК снова, после чего следовать инструкции на экране).
3. Перезагрузите компьютер. Выберите язык, после этого произойдёт переход в меню восстановления.
   
4. Выберите “Поиск неисправностей“, затем “Дополнительные параметры”
   
5. Потом нажмите на “Командная строка”
   
6. Введите:

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Восстановление BCD

Для этого метода тоже потребуется внешний накопитель с заранее установленным образом операционной системы. Загрузочный сектор чаще всего повреждается в случаях преждевременного выключения компьютера при обновлении, поэтому, если такое случилось, необходимо воспользоваться этой инструкцией:

1. Выключите ПК и подсоедините внешний накопитель с образом ОС.
2. Перейдите в BIOS и измените приоритет на флешку или диск (показано в предыдущем способе)
3. В среде восстановления запустите командную строку.
   
4. Без кавычек впишите в неё команды:

• bootrec/FixMbr
• bootrec/FixBoot
• bootrec/ScanOs
• bootrec/RebuildBcd
• Каждую команду разделяйте нажатием клавиши Enter.
• Перезапустите ПК.

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Проверка работоспособности жёсткого диска

Синий экран c000021a, выдающий ошибку под названием fatal system, обычно случается из-за проблем с жёстким диском, его постепенным выходом из строя или чрезмерной заполненностью. Проверить работоспособность диска довольно просто. Для этого требуется:

1. Вызвать командную строку и открыть её от имени администратора
2. Вписать в неё: chkdsk C: /F /R
   

Это позволит выявить ошибки и автоматически их исправить, если это возможно сделать средствами Windows 10.

Преобразование диска или раздела из NTFS в GPT

1. Подключите загрузочную флешку
2. Через средства восстановления перейдите в командную строку (подробно описано в способах, которые выше).
   
3. В ней введите:

• diskpart
• list disk
• select disk 0
• clean
• convert gpt
  
• После каждой команды нажимайте Enter

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Это самый сложный способ, который используется, если ни один другой не помог, и ошибка c000021a так и не была устранена. При преобразовании диска или раздела из NTFS в GPT вся сохранённая ранее информация оказывается переформатирована, многие данные при этом безвозвратно удалятся.

Если ни один способ не помог, остаётся только полностью переустановить операционную систему. В этом случае несохраненные данные удалятся, но компьютер будет готов к использованию и перестанет выдавать ошибку c000021a на синем экране.

When your operating system crashes, you will receive the stop code 0xc000021a along with the “your PC ran into a problem and needs to restart” error message. Why does this error happen to you? Here, MiniTool will analyze the possible causes and corresponding solutions.

Microsoft will release Windows updates regularly, which can fix some errors and bugs on the previous version. However, the new Windows update brings some new errors too. While the stop code 0xc000021a is one of the possible errors that you may encounter.

Here comes the key point. What causes Windows 10 stop code 0xc000021a? How to fix it? To get the answer, read the following section now!

Why Does BSOD 0XC000021A Appear

The “your PC ran into a problem and needs to restart Windows 10” error will occur when updating Windows. Then, your PC won’t boot normally and will show you the blue screen as well as the error code 0xc000021a.

The winlogon.exe and csrss.exe files are mainly responsible for the error. The specific analysis is shown in below.

Winlogon.exe: As the file name implies, this file is in charge for login and logout operation inside Windows. It can be damaged because of mismatch of system files or third-party software.

Csrss.exe: It belongs to Microsoft server or client. If this file gets damaged, the BSOD Windows 10 0xc000021a will occur.

In fact, there are some other factors that can result in the stop code 0xc000021a Windows 10 besides the damage of the two mentioned important operating system files.

• The interference of external devices
• Premature unloading of Wbemprox.dll library
• Incorrect configuration or corrupt device drivers
• Damaged or corrupt Windows registry
• Installed software that is incompatible with OS

Since you have known the possible causes of the 0xc000021a error, let’s explore it methods now.

Method 1: Unplug External Devices

External devices can interfere with your booting process and cause the BSOD error 0xc000021a. Hence, it is strongly recommended that you unplug all external devices on your computer. After that, try rebooting your computer and check if the error still persists. If the error still exists, try other methods immediately.

On the contrary, if the error disappears, the one of the external devices is the cause of the error. In this case, you can plug the device back one by one until the stop code 0xc000021a appears again.

Method 2: Uninstall Recently Installed Software/Hardware

If you install any software or hardware before encountering the error, you can consider uninstall them to fix the error. That is because such sort of software/hardware may not be compatible with your OS. At this time, you should uninstall recently installed software/hardware.

If your computer can boot into Safe Mode, you can try this method. How to enter the Safe Mode when your computer cannot boot? You can do it by following the methods in this post.

After entering Safe Mode, navigate to Control Panel and find out the recently installed software. After that, right click it and follow the given instruction on the screen to uninstall it. If you add some hardware such as more RAM or Graphic Card, remove or disable it.

Method 3: Boot Windows Without the Driver Signature Enforcement Feature

The Driver Signature Enforcement feature is a security measure that can prevent drivers that are not digitally signed from running on Windows 10. That is to say it can give rise to the stop code 0xc000021a. Hence, you need to disable it after booting into your system.

Step 1: Reboot your computer with a Windows installation media and set it as the first boot order in the BIOS page.

Step 2: Then, follow the steps on the screen to enter Windows Repair Environment (WinRE).

Step 3: Choose Troubleshoot > Advanced Options > Startup Settings.

Step 4: Click on Restart.

Step 5: After your computer restarts, press the F7 key to choose the Disable Driver Signature Enforcement option.

After conducting these steps, you might access various features in the system and troubleshoot the problem.

Method 4: Fix Corrupted System Files via SFC

As mentioned earlier, damaged system files can lead to the 0xc000021a Windows 10 error. SFC (System File Checker) is a built-in feature of Windows, which can help you fix such issue. When you are in Windows 10 Safe Mode, you just need to continue the steps below to solve the BSOD 0xc000021a error.

Step 1: Type cmd in the search box, and then right click Command Prompt in the search results and choose Run as administrator option from the submenu.

Step 2: In the elevated prompt window, type sfc /scannow and hit the Enter key. Then, the program will start scanning and repairing your corrupted system files. After the whole process finishes, restart your computer and check if the error is solved.

Method 5: Run DISM Command

If sfc/scannow not working, you can try other alternatives instead like running DISM command. If you are in Windows 10 Safe Mode, these steps are available for you.

Step 1: Repeat the Step 1 of the Method 4 in this post.

Step 2: In the pop-up window, type the following command and press Enter to continue.

DISM /Online /Cleanup-Image /RestoreHealth

Then, the DISM scan process will begin automatically. This process will take about 20 minutes to finish entirely. Hence, you need to wait for some time and don’t do other operations.

Method 6: Replace All Corrupted Registry Hive Files with Backups

Since your computer will try accessing basic registry editor configuration files, the PC can be affected by corrupted registry hive files. Thus, the “your PC ran into a problem and needs to restart” error occurs. In this case, you can replace the corrupted one with the backups to repair the error.

If you can enter safe mode, you can replace the damaged files in the registry editor via File Explorer. However, if you cannot, you must perform this operation via Command Prompt under the Windows Recovery Environment.

You can enter the Windows Recovery Environment with the help of a Windows installation USB or disc containing the installation files of your current Windows version. After that, carry out the following steps.

Step 1: Insert the prepared Windows installation USB or disc into the affected computer, and then restart it.

Step 2: Press the Delete, F2, Esc or other keys or key combinations when restarting your PC to enter the BIOS.

Step 3: Set the installation USB/disc as the first boot order in by following the instruction on the BIOS window.

Step 4: Save the changes and exit.

Step 5: Then, enter the Windows Recovery Environment according to the instruction on the screen.

Step 6: Click on Repair your computer > Troubleshoot > Command Prompt.

Step 7: Type c: into the Command Prompt and press Enter to continue.

Step 8: Type cd windowssystem32config and hit Enter.

Step 9: Type dir and hit Enter. Then, all the files and folders in the directory will be displayed in the Command Prompt.

Step 10: Type System System.old (System represents the actual file displayed in the Command Prompt) command and press Enter. You need to do this operation for all files (not folders) that are displayed in the Command Prompt.

Step 11: Rename each file in the directory (creating backups for each of them), and then type cd RegBack and hit Enter.

Step 12: Type dir and press Enter. Now, you will see all the files and folders present in this directory.

Step 13: Type the following commands one by one and hit Enter after type each command.

• copy /Y SOFTWARE
• copy /Y SAM
• copy /Y SYSTEM

Then put the registry hives back for the folders you renamed. After that, close Command Prompt. Now, you can press the Exit key to remove Windows installation media and restart your computer to check if the error is fixed.

Method 7: Reset BIOS

It is proved that resetting BIOS can fix stop code 0xc000021a. You are able to reset it by taking out the CMOS battery from the computer’s motherboard for several minutes. For that, you need to:

Step 1: Turn off your computer.

Step 2: Unplug all power cables on the computer to switch off the power source of the computer entirely.

Step 3: Open the computer’s chassis.

Step 4: Find the CMOS battery of the PC and remove it.

Step 5: Wait for about 1-2 minutes. The put the battery back in.

Step 6: Put the casing back, and then reboot your computer to see if it can boot into Windows.

Method 8: Recover Missing Data

If the two system files (winlogon.exe and csrss.exe) are missing from your computer, you can also encounter the error. If so, you need to recover them. Besides, if there are important files on your PC, you can also recover those files to external devices to ensure the data security.

Here, MiniTool Partition Wizard is strongly recommended. It is a professional partition manager, which can help you format partition, migrate OS from SSD/HD wizard, wipe disk, recover data, etc. It is a safe and reliable tool. You can get it by clicking the button below.

Then, reboot your computer under the help of bootable media, and then set it as the first boot order in BIOS. After that, follow the instruction on the screen to enter the MiniTool PE Loader.

Step 1: Click on MiniTool Partition Wizard in the elevated page.

Step 2: Then you will launch the application and  enter the main page of MiniTool Partition Wizard Pro Ultimate Edition.

Step 3: Click on the target disk, and then pick Data Recvoery option on the top of the main interface.

Step 4: You can choose Logical Drive, Lost Partition or Hard Disk according to your demand. Here, I choose the Hard Disk. After that, click Scan to start the operation.

Step 5: You will get the following page after clicking Scan. This page will show you the whole scan process.

Step 6: When the scan operation finishes, choose the needed files and click Save.

Step 7: After selecting a destination for the recovered files, click on OK. You’d better not choose the previous location that the files stored before, which can overwrite the lost/deleted data.

Step 8: Then the program will save the recovered files to the detsination automatically. You just need to wait patiently. If you are prompted with any operations, jusy follow.

Method 9: Reinstall Windows OS

If all the above methods fail to work, you can consider reinstall Windows OS. If you have recovered all the important files to external devices with MiniTool Partition Wizard Pro Ultimate, you can reinstall Windows now by following this guide.

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Conclusion

In conclusion, this post introduces you the possible causes of Windows 10 stop code 0xc000021a and some methods to fix the error. You can solve the error by using the methods given by this article. If you are not sure the exact cause of the error, you can try the methods one by one until you fix it successfully.

If you have any new thought on 0xc000021a error or encounter other similar errors, you can leave your words in the comment area. If you have any doubt about MiniTool Partition Wizard, please contact us immediately via the email [email protected].

Microsoft keeps launching Windows updates to resolve the problems in the older version or remove bugs. But the newer version may have other bugs and undesirable problems for users. One of the most common and irritating errors in different versions is Windows Stop Code 0xC000021A. 

9 Solutions to Fix Windows Stop Code 0xC000021A

This error makes it hard for a user to start his device and use it for their desired purposes. Also, this error has become a hurdle for many users who want to perform their tasks quickly. Do you want to learn the best fixes for this problem? This guide will help you understand 8 fixes to solve this error. 

What Is Windows 10: BSOD Error 0xC000021A?

0xC000021A is a common error with multiple names including stop code, death error, and others. You will get a blue death screen showing this error and a notification, «Your PC ran into a problem and needs to restart» It means that the system has detected some problem with your device that needs to be fixed.

This Windows error is common in all versions instead of any specific version. Doesn’t matter which version you are using, you may have experienced this error. But the main question is why this error occurs in all systems. Let us show you a few reasons for this error to make it understandable. 

• Affected software or program involvement.
• Incompatible 3rd party applications. 
• Damaged system registry. 
• Incomplete loading of the library. 

No doubt, there can be many other reasons for Windows stop code 0xC000021A. But the above-mentioned are considered the most common causes behind this specific error. Now, it is time to learn how to fix these problems to resolve this error and keep using your device smoothly. 

Additional Help: How to Recover Data Before Fix Error 0xC000021A

Before fixing this Windows step error or any other error, we recommend you add recovery software. It is common to lose your data while you are trying to resolve such problems. The best way is to add a program before fixing any issue to make sure that you will get your data back if lost. 

EaseUS Data Recovery Wizard is one of the best programs we recommend to you. Doesn’t matter which Windows version you are using, it enables you to recover your data. This software has been designed with a working interface that is compatible with all versions of Windows. 

Along with versatile compatibility, this program has multiple features. It enables you to experience outstanding features that may not be available in any other data recovery software. Let’s have a look at its best features quickly. 

• This program will recover deleted files within a few minutes. It will not take prominent time because of its fast algorithm.
• Your data will never be affected by this tool. It will recover your files in the original format without overwriting them.
• It will never ask you to reboot or reinstall Windows.
• This data recovery software has a user-friendly interface.

Due to these advanced features, we recommend you choose EaseUS Data Recovery Wizard WinPE. You will never be disappointed by using this product to recover your lost data.

Step 1. Select a drive and start scanning

Launch EaseUS Data Recovery Wizard and hover over the partition where you lost data. This could be an internal hard disk, external disk, USB, or SD card. Then, click «Scan».

Step 2. Check and preview scanned files

Use the file format filter on the left or upper right corner to narrow the scan results until you find the files you need. Then, you can click the «Preview» button or double-click a file to preview its content, if you’d like. 

Step 3. Recover lost data to a secure location

Click the checkbox next to the file and click «Recover» to restore the lost data to a secure place. We recommend that you do not store the recovered data on the disk where you lost it earlier.

9 Best Solutions to Fix Windows Stop Code 0xC000021A

With the above discussion, you must have got an idea about the causes of Windows 10 BSOD code 0xC000021A. In this section, we will show you some of the best fixes to follow to resolve this error. Keep in mind that not all solutions work for you. It is possible that you have to keep trying all the following fixes to find the one that works for you. 

Abide by this, you can also get an idea about how to fix this error by watching this video tutorial. In this video, the complete method has been discussed step-by-step. 

• 0:25 Fix MBR and system file
• 1:25 Fix BCD error

Method 1. Disconnect or Unplug All External Devices

As mentioned above, a common reason behind this error is the interference of external devices. So, you should try fixing this error by disconnecting all external devices one by one. The best way is to look at all those devices and keep disconnecting or unplugging them. 

You should have to unplug them and keep restarting your device. If the error has been resolved, it means that the error is because of an external device. If your device is still showing Windows stop error 0xC000021A, you should keep trying the next methods. 

Method 2. Run Windows Boot Repair Tool

If you encounter a blue screen error, the first thing you can try is to use EaseUS Partition Master for boot repair. This tool creates WinPE bootable disks and applies the «Boot Repair» feature to fix all boot errors on the disks to keep your system running efficiently.

Step 1. Start EaseUS Partition Master after connecting the external drive/USB to your computer, go to «Bootable Media,» and click «Create bootable media.»

Step 2. Select an available USB Drive or CD/DVD and click «Create.» You can also burn the Windows ISO file to the storage media.

Step 3. Connect the created bootable drive to the new computer and reboot the computer by pressing and holding F2/Del to enter the BIOS. Then, set the WinPE bootable drive as the boot disk and press F10 to exit.

Step 4. Boot the computer again and enter the WinPE interface. Then, open EaseUS Partition Master and click «Boot Repair» under the «Toolkit» option.

Step 5: Select the system you want to repair and click «Repair.»

Step 6. Wait a moment, and you will receive an alert that the system has been successfully repaired. Click «OK» to complete the boot repair process.

Download this full-featured Windows boot repair tool and solve your problem! You may also like the following topics:

Method 3. Repair Corrupted System Files from the Installation

Another effective way to remove this blue screen of death error is by repairing the corrupted files of the system. The process is also simple and can be accomplished using simple steps. We have discussed them in the following section.

Note: You need to make a Windows media creation tool and boot from it. Then, follow the steps below:

Step 1. Select the language preference. Then, click «Repair Your Computer».

Step 2.  Click «Troubleshoot» and then choose the advanced options. Click «Command Prompt».

Step 3. When the Command Prompt opens up, type chkdsk C: /r and press Enter.

Step 4.  Enter sfc/scannow and click on the Enter button.

Once you have done with the above steps, don’t forget to restart your system. By doing this, you will allow your system to settle its operating system as well as let you know whether the error has been resolved or not. 

Method 4. Update Device Drivers to Fix the BSOD Error

It is a common habit to forget about the updates of the device drivers by most of the users. Mostly, the users won’t update drivers which can lead them to this error and others too. So, you can try updating device drivers to solve this problem. Here are the steps that you can follow for this. 

Step 1. Boot in Safe Mode in Windows 10.

Step 2. Right-click on the start button to open the menu bar.

Step 3. Choose Device Manager from the given options.

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

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

Step 6. Click «Search automatically for driver software».

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

It will start updating the outdated drivers of your device to make your device updated. It might be possible that error 0xC000021A has been resolved and your system will start working smoothly.

Method 5. Rebuild the Boot Configuration Data (BCD) to Fix Code 0xC000021A

If you are getting this error in Windows 10, it might be due to BCD (Boot Configuration Data). The reason is it is responsible for Windows 10 operations startups. By fixing this, you may be able to resolve this error. Boot from the creative media and follow the steps below.

Step 1. Go to Troubleshoot menu. Look for Advanced Options and then Command Prompt. 

Step 2. Type the following command in the Command Prompt and press Enter.

• bootrec /fixmbr
• bootrec /fixboot

By following these steps, it is possible to resolve Windows 10 BSOD code 0xC00021A. The reason is that it will rebuild the entire configuration of your Windows.

Method 6. Disable the Driver Signature Enforcement Feature

Many users download and install software that is not digitally signed. Such software or programs are restricted from working by this specific driver. It can also show you this error and your device will start showing this error again and again. So, you should have to follow these steps to disable this driver. 

• Start your computer and keep pressing F8 or F11. 
• Boot with the recovery option by following this pathway, Troubleshoot > Advanced Options > Startup Settings > Restart
• Now, keep pressing F7 to disable this driver and reboot your system

By doing this, it is possible that Windows stop error 0xC000021A has been solved. The reason is it is considered the most common reason behind this error.

Method 7. Reset BIOS to Fix Code 0xC000021A

BIOS resetting can be a solution for this error as well as keep you safe from other problems too. To remain on the safe side, you should have to reset the BIOS of your device. Let us show you some points for this purpose.

Step 1. In the troubleshooting menu, find and select UEFI Firmware Settings.

Step 2. Tap on the Restart button to enter the BIOS system.

Step 3. Find the option «Reset Configuration Data» to accomplish this task.

Step 4. Save the New settings and restart your computer for smooth working.

This is all you have to do for resetting the operating system of your device and keep your data safe from any unauthorized access. 

Method 8. Perform a System Restore to Fix Code 0xC000021A

Another effective way to resolve Windows 10 BSOD code 0xC000021A is to perform a system restore in Windows 10. You should have restored the system to check whether the error has been resolved or not. Here are the steps through which you can restore the system safely. 

Step 1. Go to Advance Startup and look for «System Restore».

Step 2. Select a point to restore your system.

Step 3. Tap on the Next button and follow the on-screen instructions.

 

Don’t worry if you are not familiar with this process as the on-screen instructions will be simple to follow. You can follow them just by reading them once instead of looking for video tutorials. 

Method 9. Reinstall Windows 10 to Fix Windows Stop Code 0xC000021A

If nothing works from the above fixes, the last fix that you can try is to reinstall Windows 10. By doing this, you will be able to settle all the files related to the OS of your device. Along with this, you will be able to install the updated device in your device with this installation. To do so, you need to follow these steps. 

• Insert CD/DVD or attach USB for this installation 
• Choose «Create Installation media USB for another PC»

Now, you have to follow the on-screen instructions to install the new copy of the Windows

Conclusion

In the above blog, we have comprehensively discussed all those methods with the help of which you can resolve Windows stop code 0xC000021A. You only have to follow these methods one by one to get your device in a smooth condition. 

Keep in mind that you shouldn’t quit the process unless you have found the right fix. It is possible that you have to follow the procedure of more than one fix to find the right one.

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Windows Stop Code 0xC000021A FAQs

If you still have problems, read the frequently asked questions to get additional help.

1. What does 0xC000021A mean?

It is a particular error that has multiple names including death screen, Windows stop code, and others. In this error, you will get a blue screen with a notification «Your PC ran into a problem and need to restart».

2. How do you stop the blue screen of death?

To stop BSOD Windows 10, you can follow the above list of fixes. Any of the above-mentioned solutions will be useful for you. 

3. What is a green screen of Death?

Windows green screen is a particular error that can damage the basic elements of your system as well as make your PC inaccessible. 

4. How do I fix the kernel mode heap corruption?

There are different ways to solve the kernel mode heap corruption but the best one is to update device drivers. You should keep trying to update drivers related to different fields or tasks like graphics.