You have to try reinstall from scratch which will fail if the drive is physcially bad.
The STOP 0xC000021A error occurs when either Winlogon.exe or Csrss.exe fails. When the Windows NT kernel detects that either of these processes has stopped, it stops the system and raises the STOP 0xC000021A error. This error may have several causes. Among them are the following:
Mismatched system files have been installed.
A Service Pack installation has failed.
A backup program that is used to restore a hard disk did not correctly restore files that may have been in use.
An incompatible third-party program has been installed aka MALWARE VIRUS ETC.
It is very common for malware to replace the default Windows GINA DLL (Msgina.dll). Therefore, a good first step is to examine the system to see if it has a third-party GINA DLL. To do this, locate the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon Value = GinaDLL REG_SZ
If the Gina DLL value is present and if it is anything other than Msgina.dll, it probably means that malware has changed this value.
ieee488
4 Operator
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11.1K Posts
0
December 16th, 2015 11:00
https://support.microsoft.com/en-us/kb/156669
speedstep
9 Legend
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47K Posts
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December 18th, 2015 05:00
You have to try reinstall from scratch which will fail if the drive is physcially bad.
The STOP 0xC000021A error occurs when either Winlogon.exe or Csrss.exe fails. When the Windows NT kernel detects that either of these processes has stopped, it stops the system and raises the STOP 0xC000021A error. This error may have several causes. Among them are the following:
It is very common for malware to replace the default Windows GINA DLL (Msgina.dll). Therefore, a good first step is to examine the system to see if it has a third-party GINA DLL. To do this, locate the following registry key:
Value = GinaDLL REG_SZ