On a computer that is running Windows Server 2008 or Windows Vista, you may receive the following Stop error message:

0x00000019 (00000021, parameter2, parameter3, parameter4)

This behavior occurs when you change the Internet SCSI (iSCSI) configurations on the computer and retrieve some iSCSI connection statistics by using Windows Management Instrumentation(WMI).


  • The parameters in this error message vary, depending on the configuration of the computer.
  • Not all “0x00000019” Stop errors are caused by this problem.

One Reply to “KB974201”

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