Steps to Fix Error 0xc000021a in Windows 10

Fix Error 0xc000021a More than 75 Million activation of Windows 10 took place within 30 days of its official release. This latest operating system has worked well for most of its users but some problems or issues make this OS little irritating. There are lots of issues that comes with the Windows 10 upgrade some of them are Windows 10 Nvidia driver issues, “Unable to Run GTA: Episodes from Liberty City on Windows 10”, NETAPI32.DLL is Missing / Not Error Messages in Windows 10, “Unable to Login with my Microsoft Account in Windows 10”, ACPI_BIOS_ERROR in Windows 10, ‘Element Not Found’ Error in Windows 10 and more.

In this blog we will discuss about the 0xc000021a error in Windows 10 and try to fix 0xc000021a error in Windows 10. This issue is not new because Windows 8.1 users were also suffered with the error (Fix STOP Error 0xc000021A in Windows 8.1).

You may face 0xc000021a error in Windows 10 after upgrading or after executing a repair install.

Cause of 0xc000021a error in Windows 10

The 0xC000021A error can appear when Winlogon.exe or Csrss.exe stops working. These files get damage because of:

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  • When system files in the computer gets corrupt.
  • Incomplete Upgrading process or error during upgrade.
  • Incomplete installation of any apps or software.

Tricks to Repair 0xc000021a error in Windows 10

Boot Windows 10 in Safe Mode

To get the startup repair window you should have to start the computer with a bootable Windows 10 DVD or USB disk.

Click on the Repair your computer.Windows-10-Windows-Recovery-Options-Installation-Repair-your-computer-1

Go to the Troubleshoot > Advanced OptionsDoes-Not-Start-Advanced-Options-Reset-your-PC-2

Click Startup Settings > Restart0xc000021a-Windows-10-Startup-Settings-3

To boot into safe mode, select one form the available options once the computer reboot. It is suggested to select Safe Mode with Networking, because this allows you to use the internet in safe mode. In case you are unable to load safe mode then select simple safe mode.0xc000021a-Windows-10-Startup-Settings-2-4

Once system restart in safe mode then you can copy important data and run commands to fix issue. Try to run the sfc /scannow command in command prompt. This command will scan for and repair damaged system files of the Windows computer.

Reset Windows 10

Try to reset your Windows 10 OS, use Windows 10 installation DVD or USB. Click Repair your computer > Troubleshoot Reset this PC.

By resting all the installed software and user accounts will be deleted from the Windows partition, and reinstall a fresh Windows.

Make sure that Your PC is Healthy or Not?

Above given method will fix this issue, but it is recommended to confirm that your Windows 10 system is healthy or not. You can do this with the help of a professional Window 10 PC Repair tool. This app is specially designed to deal with all types of windows error and compatible with Windows 10. It is very simple to run this tool and you don’t need any extra knowledge.

Follow 3 Simple Steps to Repair PC Instantly!

  1. Step 1 – Download & Install PC Repair Tool.
  2. Step 2 – Click “Scan” button to diagnose the PC.
  3. Step 3 – Click “Fix Errors” to the fix the issues and you are done.

(Note: This powerful tool can increase your performance by 97%)

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