Logon Failure: Reason: An unexpected error occurred during logon User Name: %1 Domain: %2 Logon Type: %3 Logon Process: %4 Authentication Package: %5 Workstation Name: %6

Details
Product:	Windows Operating System
Event ID:	537
Source:	Security
Version:	5.0
Component:	Security Event Log
Symbolic Name:	SE_AUDITID_UNSUCCESSFUL_LOGON
Message:	Logon Failure: Reason: An unexpected error occurred during logon User Name: %1 Domain: %2 Logon Type: %3 Logon Process: %4 Authentication Package: %5 Workstation Name: %6

Explanation
This event record indicates that a logon attempt was made and rejected for some reason other than those covered by explicit audit records in this category.

User Action
The person with administrative rights for the computer should investigate the root cause of this error.