How Can I Fix Fatal System Errors On Windows 10?

The fatal system error in Windows 10 is the most sensitive error message in the blue screen death stop code. This makes the user confused and difficult to find a solution.

Shutdown error 0xc000021a is one of those dangerous fatal errors that can render your system unusable, so it is advisable to repair it quickly. But before you do that, you need to understand what a fatal system error message is.

What is a serious system error?

A fatal system failure is usually referred to as a system crash, lockup failure or kernel failure. This happens when the operating system cannot work safely. Simply put: The blue death screen appears to protect Windows from further damage.

How can I fix fatal system errors in Windows 10?

A fatal system error disrupts our work and can cause the system to crash at any time. That’s why it’s important to repair them. Follow these practical solutions one by one to correct the computer error.

1. Use the DISMcommand.

If your Windows 10 installation is corrupt or damaged, you can use the DSIM command to repair it.

To do so, follow the steps below:

  1. Use the Windows 10 installation media to boot your PC.
  2. Now open a command prompt by pressing the Shift + F10 function key.
  3. Enter the following command here:
    • Unmount/image:c: /light up the image and press Enter.
  4. Wait until the end of the process to solve the error message of the stop code.

2. Disable driver’s signature check

Another feasible solution to correct the fatal system BSOD error in Windows 10 is to disable the driver signature application.

Driver Signature Enforcement is a Microsoft security feature that checks if a driver is working properly in the operating system.

This function can also cause a system error in Windows 10. It is therefore recommended to turn off the function and see if it solves the problem or not.

Apply the following steps:

Please follow the instructions below:

  1. Reboot your Windows 10 computer at boot time to get an automatic recovery window.
  2. Select Troubleshooting > Advanced Settings > Startup Settings.
  3. Now press F7 to deactivate the driver signature check.

This disables the check of the driver’s signature. Now check whether the kernel bug in Windows 10 has been fixed or not.

3. Replace damaged files

Users are often faced with a fatal system error due to damaged system files. To solve this problem, copy and paste Winlogon, Userinit.exe and msgina.dll from another Windows 10 PC to the PC you are having problems with.

These files are stored in the WindowsSystem32 directory. Copy and paste the document into your computer. Check the version of Windows 10 before you copy files. It should be so, if you copy files from the 64-bit to the 32-bit version of Windows, you will have problems.

4. Recovery of registration

Sometimes you can correct the error message by repairing an invalid and damaged register. You can do this using a tool such as Advanced System Optimizer, which provides a register cleaner.

However, if you want to do it yourself, here are the steps to follow.

Pay attention: We do not recommend changing the registry as this may damage your system.

  1. Press Windows + R
  2. In the Execute, copy and paste window: C:WindowsSystem32config
  3. Then copy the DEFAULT, SAM, SECURITY, SOFTWARE and SYSTEM files to another location for added security.
  4. Open the Run window again and copy and paste C:WindowsSystem32configRegBack, then press Enter.
  5. From there copy the DEFAULT, SAM, SECURITY, SOFTWARE and SYSTEM files to C:WindowsSystem32config.

This should solve the problem. However, if you are unable to boot Windows 10 normally, try booting it in safe mode and then follow the steps above.

5. Performing an SFC scan

Designed to recover damaged files, SFC scanning eliminates fatal system errors. To start an SFC scan, proceed as follows:

  1. When searching in Windows, enter the command line
  2. In the search results, select Run as Administrator and right-click on Run as Administrator.
  3. Type sfc/scannow and press Enter.
  4. Wait until the process is complete.

This should correct the stop code error message.

6. Backward or driver update

Sometimes fatal system errors occur due to incorrect driver updates. So we need to reset the updated drivers.

To avoid such situations, you can use a driver update program that knows which driver needs to be updated. In addition, you can save the old driver for the update and use the trial version or the pro version.

The benefits do not stop, Systweak even offers a 60-day money back guarantee, which means that if you are not satisfied with your purchase, you can return it within 60 days of purchase.

How can I manually reset a driver in Windows 10?

In the Windows Device Manager search box, type.

Select a search result and press the Enter key.

Find the driver you just updated.

Highlight it > Right-click > Properties > Driver tab > Return transmitter

If the Roll Back Driver button is gray, click the Delete button.

That could solve the problem.

Now download the updated version of the driver manually or use Smart Driver Care to do so.

7. chkdsk version

The CHKDSK (check disk) is another viable solution to correct fatal system errors.

To use it, start the command line as administrator and type chkdsk /r C: and press Enter.

Wait until the process is complete.

To check all partitions, replace the C with other letters of the driver. Now, start Windows and you will not face a blue screen of death.

8. Reset windows 10

If nothing works, try restarting Windows. To do this, restart the computer at startup until the automatic recovery function appears, and then follow these steps:

  1. Select Troubleshoot > Reset this PC > Clear All.
  2. Insert the installation media when prompted to do so.
  3. Select the option Only the drive that has Windows installed > Delete my files
  4. Press Reset. This sets the process in motion.

If that doesn’t work either, you will need to reinstall Windows.

Pay attention: These two steps delete all data. Therefore, make sure you have a backup of all important files before you run them.

With the above steps you can safely fix the fatal error that makes the operating system unusable. Sometimes this problem is due to the equipment. Therefore, check the motherboard and replace it if it is defective or damaged so that you will not see this error message in the future.

We hope you found the guide informative and useful. If so, share it with others to help them. If this is not the case, please send us your comments in the box below.

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