Server Down Messages 

12 - kernel started

13 - kernel shutdown

26 - Application Popup Are you sure you want to restart

41 - The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

1074 - user32 restart request 

1090 - System Information Agent: Health

6008 - The previous system shutdown at time/date was unexpected. 

User Security Messages 

4740 - User Account has been locked 

4624 - User successfully logged on

4648 - Logon attempted using explicit credentials

4672 - special privileges assigned to new logon.