Troubleshooting Windows Stop Code 0xc000021a: A Comprehensive Guide

Windows stop code 0xc000021a can be frustrating, but fear not! This article provides an in-depth look at understanding, fixing, and preventing this error. Additionally, discover how MyRecover software can help you overcome such challenges effortlessly.


By Zoey / Updated on February 19, 2024

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Encountering a Windows stop code, especially the notorious 0xc000021a, can quickly turn your day sour. Your computer suddenly halts, displaying a cryptic message that leaves you scratching your head. But fret not! In this guide, we'll unravel the mystery behind Windows stop code 0xc000021a and equip you with the knowledge to tackle it head-on.

windows stop code 0xc000021a

Understanding Windows Stop Code 0xc000021a

What is a stop code?

Before we delve into the specifics of 0xc000021a, let's understand what a stop code is. In essence, a stop code, also known as a Blue Screen of Death (BSoD) error, is a mechanism employed by Windows to indicate a critical system issue. When your system encounters a condition that it cannot recover from, it halts, displaying a stop code along with relevant error information.

Common causes of Windows stop code 0xc000021a

Windows stop code 0xc000021a typically indicates a fatal system error that prevents Windows from booting successfully. Some common causes include corrupt system files, problematic device drivers, faulty hardware, or recent software changes.

How to Fix Windows Stop Code 0xc000021a

Now that we understand the basics, let's delve into how to resolve the dreaded 0xc000021a error.

Troubleshooting steps

Step 1: Access Safe Mode

When faced with a stop code, accessing Safe Mode is often the first line of defense. Safe Mode allows you to boot into Windows with a limited set of drivers and services, making it easier to diagnose and fix issues.

Step 2: Disable Automatic Restart

By disabling automatic restart, you can prevent Windows from restarting immediately after encountering the stop code, giving you more time to read and analyze the error message.

Step 3: Update Drivers

Outdated or incompatible device drivers can often trigger stop code errors. Ensure all your drivers are up-to-date, especially those related to critical system components such as graphics cards and storage controllers.

Step 4: Check Disk for Errors

A corrupted disk can also lead to stop code errors. Use the built-in CHKDSK utility to scan and repair any disk errors that may be present.

Step 5: Perform System Restore

If all else fails, performing a system restore to a previous stable state can help resolve the issue. System Restore allows you to roll back your system to a point in time before the error occurred.

Preventing Windows Stop Code 0xc000021a

While resolving the immediate issue is crucial, preventing its recurrence is equally important. Here are some tips to help prevent future encounters with the dreaded 0xc000021a error:

Keep your system and drivers up-to-date.

Be cautious when installing new software or drivers.

Regularly scan your system for malware and viruses.

Avoid making sudden or drastic changes to your system configuration.

Introducing MyRecover

In addition to the aforementioned troubleshooting steps, consider leveraging specialized software like MyRecover to tackle Windows stop code 0xc000021a and other system-related issues effectively. MyRecover offers a user-friendly interface and a suite of powerful tools designed to diagnose and repair common Windows errors with ease.

Step-by-Step Guide for DIY Data Recovery

1. Download and Install MyRecover

To initiate the DIY data recovery process using MyRecover, follow these steps:

Visit the official website of MyRecover and locate the download section.

Download the MyRecover tool compatible with your operating system (Windows or Mac).

Run the installation wizard and follow the on-screen instructions to install MyRecover on your system.

2. Launch MyRecover and Select Drive

Once installed, launch the MyRecover application:

Open MyRecover and allow the application to initialize.

From the main interface, choose the drive or storage device from which you need to recover data.

3. Scan for Lost Data

MyRecover performs a thorough scan to identify lost or deleted files:

Initiate the scanning process and allow MyRecover to analyze the selected drive.

The scanning time may vary based on the size and speed of the storage device.

4. Preview and Select Files

Before finalizing the recovery process, preview and select the files:

MyRecover provides a preview of the recovered files to ensure their integrity.

Select the files you wish to recover and choose a destination for the restored data.

5. Complete the Recovery Process

Finalize the DIY data recovery process using MyRecover:

Click on the "Recover" button to initiate the data recovery process.

Wait for MyRecover to restore the selected files to the specified location.


Encountering the Windows stop code 0xc000021a can be a frustrating experience, but armed with the knowledge and troubleshooting techniques outlined in this guide, you can overcome it. Remember to stay calm, follow the steps diligently, and don't hesitate to seek further assistance if needed.


1. Can faulty hardware cause the Windows stop code 0xc000021a?

Absolutely! Faulty hardware, such as a failing hard drive or RAM module, can indeed trigger the 0xc000021a error. It's essential to perform thorough hardware diagnostics to rule out any hardware-related issues.

2. Is MyRecover compatible with all versions of Windows?

MyRecover is designed to be compatible with a wide range of Windows versions, including Windows 10, 8.1, 8, and 7. However, it's always a good idea to check the official compatibility list on the MyRecover website for the most up-to-date information.

3. Will performing a system restore delete my files?

No, performing a system restore should not delete your personal files. However, it will revert your system settings and installed applications to a previous state, so it's essential to back up any critical data before proceeding with the restoration process.

Zoey · Editor
Zoey works as an English editor of AOMEI Technology. She provides tech information about backup and restore, mobile data transfer, and so on for AOMEI. She hopes that her articles will be greatly helpful for users. She is fond of music, film, and photography.