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Changing Default Permissions Causes STOP 0xC000021A

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Article ID:137400
Last Review:November 1, 2006
Revision:3.1
This article was previously published under Q137400

SYMPTOMS

When you start Microsoft Windows NT the following STOP error message appears:
STOP 0xC000021A {Fatal System Error}
The Windows Logon Process system process terminated
unexpectedly with a status of 0xC0000022 (0x00000000 0x00000000)
The system has been shutdown.

After Windows NT dumps system memory to disk, the computer restarts and the same STOP message reappears.

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CAUSE

The file and directory permissions may have been changed on the system root (%SystemRoot%) directory or its subdirectories. Several combinations of permissions may cause this behavior. For example, if you set file permissions to Read/Execute or Read-only in the system root directory and all its subdirectories, the behavior above occurs.

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RESOLUTION

To correct this behavior:
1.Install Windows NT to another directory and start the new version of Windows NT.
2.Reset the file and directory permissions of the original Windows NT %SystemRoot% directory to the following default permissions:

NTFS Partition
--------------

Change for the Everyone Group
3.Quit the second installation of Windows NT.
4.Restart the original version of Windows NT.
5.Remove the second installation of Windows NT.

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APPLIES TO
•Microsoft Windows NT Workstation 3.5
•Microsoft Windows NT Workstation 3.51
•Microsoft Windows NT Server 3.5
•Microsoft Windows NT Server 3.51

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Keywords: 
kbenv KB137400

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