Windows 10: Error 0xc000021a on Windows 10

Hello everyone,

My laptop with Windows 10 is showing a blue screen with the error 0xc000021a every time I try to access the Windows.

When I turn on my laptop, it shows the message: 'Automatic Repair couldn't repair your PC' and the options: 'Shut down' and 'Advanced options'. I already tried to fix this error on the 'Advanced options', using several methods that I found on sites and videos, but nothing worked.

If I choose 'Repair your computer' and then 'Startup Repair, it returns a SrtTrail.txt error. I also tried to run a lot of commands that I found on the internet on the Command Prompt, but none worked. I also can't restore the system, because it says there's no system restore points available, and I can't boot into safe mode either.

I also tried to reset the laptop on Advanced options > Troubleshoot > Reset this PC > Keep my files. I confirmed on 'Reset' and the laptop started to reset, but when it was about to 50% concluded, unexpectedly my laptop stopped the reset and went back to automatic repair screen. I tried this procedure three times, but the same thing happened in all.

Does anyone can help me, please? What can I do to fix this error or reset/reinstall Windows WITHOUT losing my data and my apps?

Thank you

P.S.: sorry for any mistakes in my text, English isn't my first language.

submitted by /u/thiago_roska
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:)

 

Fix error 0xc000021a Windows 10

I've faced this issue before. It's one of the blue screen of death errors. Im sharing 5 steps that will help you fix Error 0xc000021a

One of the following step will sort out the problem:

1. Repair corrupted system
   
2. Boot window manually
   
3. Resetting computer's BIOS
   
4. DO SFC scan
   
5. Troubleshoot to fix automatically
   

 

error 0xc000021a

Hi,

Corrupted system files may have caused the error 0xc000021a on your Windows 10. To correct this issue, we suggest that you perform the steps below:

• Hold down the Shift key on your keyboard while you select
  Restart (Shift+Restart) from the power options for Windows.
• Windows Recovery Environment window will come up.
• On Choose an option screen, select Troubleshoot.
• In the Troubleshoot screen, select Advanced Options.
• Select Startup Repair, it will scan and repair your computer automatically.

Let us know if you need further assistance.

 

Error 0xc000021a on Windows 10

Hi Alec,

Welcome to Microsoft Community.

Sorry to know that you are unable to launch the Windows 10 due to error prompt
0xc000021a. I will certainly help you.

I appreciate you for providing details about the issue and your effort towards resolving it.

This issue might occur if the system files goes corrupted.

I suggest you to follow the steps recommended by Jenith James on September 23, 2015
on similar issue from below link and check if it resolves the issue.

http://answers.microsoft.com/en-us/...c000021a/8c12f5b0-671d-48d0-8dbf-2a4b93b02f97

Please post back with the status of the issue and we will be glad to assist you further.

Thank you.