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Sometimes you may receive Windows 10 Blue screen Error Stop code 0xc000021a or STATUS_SYSTEM_PROCESS_TERMINATED at startup or after upgrade Latest Windows 10. This is because Windows itself has crashed, and your computer needs to restart. If you get this error, a big blue screen appears, telling you Your PC ran into a problem and needs to restart. it’s collecting some error information and will then restart your computer for you. In small print under that, it gives the Stop code 0xc000021A and tells you that you can find out more about the error online

Windows 10 Stop code 0xc000021a

Basically, The stop code 0xc000021a, STATUS_SYSTEM_PROCESS_TERMINATED occurs when the WinLogon (Winlogon.exe) or Client Server-Run Time Subsystem (Csrss.exe) files are damaged. Where Winlogon is responsible for handling the login and logout processes and the Client Server-Run Time Subsystem belongs to Microsoft Client or Server. So if you are struggling with this Windows 10 blue screen error here apply the solutions below.

We first recommend removing all external devices and starting Windows normally. This will fix the problem if any new hardware device driver conflicts causing the issue.

Performa startup repair

Since your Windows computer isn’t functioning normally, We need to access advanced options to perform startup repair. That automatically detects and fixes the problems that prevent Windows start normally.

  • Boot Windows from the installation disk, (if you don’t have check how to create a Windows installation drive)
  • When prompted to Press any key to boot from CD or DVD, press any key to continue.
  • Select your language preferences, and click Next.
  • Click Repair your computer in the bottom-left.

windows 10 repair your computer

  • To choose an option screen, click Troubleshoot.
  • On the Troubleshoot screen, click the Advanced option.
  • On the Advanced options screen, click Automatic Repair or Startup Repair.
  • Wait until the Windows Automatic/Startup Repairs are complete.

Windows Advanced Options

When you select startup repair this will restart the window and during startup, this will start diagnosing your system. During this diagnostic phase, Startup Repair will scan your system and analyze the various settings, configuration options, and system files as it looks for corrupt files or botched configuration settings. If Startup Repair detects any of these types of problems, it will automatically attempt to fix them.

Disable Driver Signature Enforcement

This is the best working solution recommended by most users

  • Again open the advanced option following the above method,
  • This time click on the command prompt,
  • Now type the following commands and press enter key to disable driver signature enforcement on your system.
  • bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS
  • bcdedit -set TESTSIGNING ON
  • Reboot your computer and see if you’re able to Fix BSOD Error 0xc000021a in Windows 10.

Note: If you want to enable signature enforcement in the future, then open Command Prompt (with administrative rights) and type these commands in order:

  • bcdedit -set loadoptions ENABLE_INTEGRITY_CHECKS
  • bcdedit /set testsigning off

Rebuild BCD

Still, the problem is not solved, Getting Windows 10 BSOD error 0xC000021A. Let’s rebuild the boot configuration file, which probably helps to boot Windows normally.

Again access advanced options, -> command prompt option. Now perform the commands below one by one.

  • bootrec /FixMbr
  • bootrec /FixBoot
  • bootrec /ScanOs
  • bootrec /RebuildBcd

Restart Windows after completing the process and check if the system started normally.

fix bootrec Errors

Boot into safe mode

If you are still reading this means the above solutions didn’t fix the problem for you. Don’t worry Start windows into safe mode that helps to perform some additional solutions.

  • Access advanced options,
  • Click on startup settings then restart,
  • Now press F4 to start Windows into safe mode.

windows 10 safe mode boot option

Run system file checker

When Windows starts on safe mode, run the system file checker utility. This will help if any corrupted missing system files cause this blue screen error.

  • Open the command prompt as administrator,
  • Type the command sfc /scannow and press enter key,
  • This will start the scanning system for corrupted missing files,
  • And if found the utility automatically restores them with the correct one,
  • Let 100% process complete the scanning process,
  • And restart windows after that, now check if this helps to fix the problem.

Run system file checker

Run the Memory Diagnostic tool

Sometimes Corrupted RAM can cause this blue screen problem. so To determine whether or not this is the case, you need to test your RAM. This can be done, by running the Memory Diagnostic Tool.

Perform system restore

Restore Points prove to be very useful in situations like this. This method is only useful for you if you already have a Restore point Created in the past when your PC was Running Smooth as Butter. For those who already have a Restore point created, Read how to perform a system restore on Windows 10.

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