How to fix error 0xc000021a on Windows 10, blue screen error


When using a computer, suddenly you see a blue screen with the error message 0xc000021a, after which you cannot access Windows 10 anymore. So how to fix 0xc000021a error on Windows 10 as well as restore Windows to old, the following guide will help you do that.


Error 0xc000021a also known as blue screen error on Windows 10 is really a nightmare for anyone using Windows not just Windows 10. Microsoft has also explained error 0xc000021a Due to many reasons leading, partly due to the problem of partitioning the drive, hard drive failure or some causes during use and blue screen error appears prevent you from being able to access your Windows 10.

Usually with other blue screen errors, you just need to reboot and then find the cause of any software. However with error 0xc000021a on Windows 10 making it impossible for you to access Windows 10 much more seriously. Before deciding to install Windows 10 again or perform a reset of Windows 10, you should try the following method of Taimienphi.vn to proceed. Fix error 0xc000021a on Windows 10.

How to Fix error 0xc000021a on Windows 10, fix blue screen error

If you normally get into Windows, then going to Advanced Options to restore is quite simple with shortcuts Ctrl + Alt Del to display the screen as below.

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Then hold on Shift and click on Restart is done.

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However, in the more powerful case that Taimienphi.vn mentioned above is also the problem of this article that makes you unable to access Windows we will have to find another way. There are 2 ways to get in Advanced Options to fix 0xc000021a error on Windows 10.

– You can create Windows PE, Win mini format helps you to enter Windows 10 fastest, then apply the advanced Options that Taimienphi.vn just mentioned, refer to the article on how to create Windows PE and follow the instructions Put it in.

– Another way is to refer to another article of Taimienphi.vn, with 5 ways to enter Advanced Options will give you more options in case you are not eligible to follow the above way, see how Access Advanced Option Windows 10 here.

Step 1: After getting in Repair If doing one of the 2 ways Taimienphi.vn proposed above, continue to choose Choose an Option >Troubleshoot .

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Step 2: Click here Advanced options .

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Step 3: In the section Advanced Options There are 6 options to customize with your Windows 10, to fix 0xc000021a error on Windows 10 you choose Command Prompt .

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Step 4: The system will reboot and automatically take you to the Command Prompt after Log in to your computer account to enter.

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Step 5: Enter the correct computer password tiếp tục to continue.

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Immediately after completing the login step, the Command Prompt screen interface will appear.

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Step 6: In the Command Prompt type the command: sfc / Scannow to perform a full scan.

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Step 7: Immediately after conducting a scan, if no errors are detected, continue typing dism / online / cleanup-image / restorehealth to help restore Windows 10.

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After this process, restart your computer to see if you can access Windows 10 again. Such error 0xc000021a on Windows 10 has been fixed already.

Instructions to fix 0xc000021a error on Windows 10 by setting new config.

In case the above method fails, you still cannot access your Windows 10 then follow this method.

Step 1: Continue to Command Prompt according to the instructions above and then type the command dir .

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Step 2: After typing dir, you proceed to create Config with the command cd Windows system32 config

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Step 3: After creating again continue typing dir .

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If the section Config contains SAM, Security, Software, System, Journal, Regback files, you have created successfully.

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Step 4: Next step we create a new Regback file, type the command copy *. * registry.old

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Step 5: Then type cd regback and dir .

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Step 6: Keep typing Copy *.* to copy the entries contained in Regback.

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Step 7: After completing this step, type the command Exit and reboot

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Choose tiếp tục to reboot, and then you check to see if you can access Windows 10.

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Following 2 ways above of Taimienphi.vn will help you fix error 0xc000021a on Windows 10, hope you can reopen Windows 10 normally to avoid having to reinstall Windows. Also during the process of using Windows 10 you encounter error messages related to Class Not Registered Windows 10, a common error with those who are using this system. To thoroughly overcome it you need to refer to the article how fix Class Not Registered error on Windows 10 Please.

https://thuthuat.taimienphi.vn/cach-sua-loi-0xc000021a-tren-windows-10-loi-man-hinh-xanh-22828n.aspx
On Windows 10 there are many causes of blue screen error, in addition to error 0xc000021a, the BAD POOL CALLER error is also one of the blue screen errors that make users feel uncomfortable.If you encounter this error, please refer to fix BAD POOL CALLER error to fix.

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