Error – Error events indicate that a significant problem, such as loss of data or functionality has occurred. For example an Error event is recorded every time that a service or driver fails to load during startup.
Warning – Warnings indicate events that are not necessarily significant, but which may possibly cause future problems. For example, a Warning event is recorded every time that disk space runs low.
Information - Information events describe the successful operation of an application, driver, or service. For example, an Information event is recorded every time that a network driver loads successfully.
Success Audit – Success audit events indicate security access attempts that were successful. For example, a Success Audit event is recorded every time that a user successfully logs on to his Windows based workstation.
Failure Audit – Failure audit events indicate security access attempts that failed. For example, a Failure audit event is recorded every time that a user fails to access a network drive.
