Bug Check 0xC000021A: STATUS_SYSTEM_PROCESS TERMINATED
Have you ever received BSOD 0xC000021A on a Windows computer? This means that an error has occurred in a crucial user-mode subsystem such as winlogon, csrss or smss. This is one of the few cases where the failure of a user-mode service can shut down the system. Mismatched system files can cause this error. As well as can attempting to restore your hard disk from a backup.
To resolve this kind of problem you need to get a user mode dump of the failing process. If the error occurs during system startup, restart your computer, and press F8 at the character-based menu that displays the operating system choices. At the resulting Windows Advanced Options menu, choose the Last Known Good Configuration option. This option is most effective when only one driver or service is added at a time. If this does not resolve the error, try manually removing the offending software.
Try running the Emergency Recovery Disk (ERD) and allow the system to repair any errors that it detects.
Resolving a mismatched system file problem: If you have recently restored your hard disk from a backup, check if there is an updated version of the Backup/Restore program available from the manufacturer. Make sure the latest Windows Service Pack is installed.
Third party Gina will also cause this problem.
Remove it from registry
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Value = GinaDLL REG_SZ
- If the Gina DLL value is present and is anything other than
Msgina.dll, this probably means that a third-party product has changed
this value.
- If this value is not present, the system uses Msgina.dll as the
default GINA DLL.
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