The STOP: c000021a (Fatal System Error) error occurs when the Windows NT kernel detects that either the Winlogon.exe or Csrss.exe processes have failed. When this failure happens, the Windows NT kernel stops the system and generates the stop error message.
Symptom 1: 0xc000021A error screen The 0xC000021A error is a Blue Screen of Death or BSoD error (related: Blue Screen of Death guide) that occurs when a Windows user-mode subsystem is compromised.
Why does windows stop c000021a fatal system error?
The exact Windows STOP c000021a Fatal System Error message might be slightly different. But you should be aware of what happens when you get this fatal blue screen error on your PC: The Windows kernel may have detected that the Winlogon.exe or Csrss.exe service processes have failed (reaction stopped or no download succeeded). .
Why is c000021a fatal system error on Windows 7?
If Fatal System Error C000021A is due to corrupted boot configuration data, this troubleshooting method should fix it permanently. So, these are all the troubleshooters you need to implement to fix Fatal System Error C000021A in Windows 7 and 8.1.
What does fatal system error c000021a mean?
Let’s take a look at the blue screen of the malicious system error c000021a, which is unfortunately one of the deadliest popular system errors you can encounter. The Windows logon system process route terminated unexpectedly with the corresponding status 0x00000403 (0x00000000 0x00000000). The system was closed.
How do I fix C000021A fatal system error?
0:301:06How to fix Blue Screen of Death error c000021a – YouTubeYouTubeStart at suggested clipEnd suggested clipIf I say to reboot the system, press and hold all the F8 keys according to my startup settings. ScreenMore When the system reboots, hold down this F8 key to access advanced boot options. A screen will appear where you select an option called Trust Last Known Good Configuration.
How do I fix c000021a fatal system error?
0:301:06How to fix blue screen of death stop error c000021a – YouTubeYouTubeSuggested Clip StartEnd Suggested Clip On reboot, press and hold F8 to see advanced startup options. The screen disappears when you reboot the system by holding down the f8 key, which leads to additional boot options. The screen appears from here. Use the Last Known Good Configuration option.
When does fatal system error c000021a occur?
The system Windows logon process terminated unexpectedly with a final status of 0x0. Application completed. Fatal PC error c000021a occurs when a specific Windows kernel (which is an integral functional component) detects Winlogon.exe, or it may be that the Csrss.Services exe executable has crashed or terminated.
What is C000021A fatal system error?
STOP error: c000021a (fatal system error) occurs when the Windows NT kernel detects that the Winlogon.exe or Csrss.exe processes have failed. When this error occurs, the Windows NT kernel shuts down the system and may issue a Stop error message. It is possible that incompatible system files are installed on a particular system.
Vijay is a tech writer with years of experience in the Windows world. He’s seen it all – from simple problems to catastrophic system failures. He loves nothing more than helping people fix their PCs, and he’s always happy to share his wisdom with anyone who needs it.
When Vijay isn’t fixing Windows problems, he likes to spend time with his wife and two young children. He also enjoys reading, playing cricket, and watching Bollywood movies.