This subcategory reports when packets are dropped by Windows Filtering Platform (WFP). These events can be very high in volume. Events for this subcategory include: ? 5152: The Windows Filtering Platform blocked a packet. ? 5153: A more restrictive Windows Filtering Platform filter has blocked a packet. Refer to the Microsoft Knowledgebase article ?Description of security events in Windows Vista and in Windows Server 2008? for the most recent information about this setting: http://support.microsoft.com/default.aspx/kb/947226. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Advanced Audit Policy Configuration\Audit Policies\Object Access!Audit Policy: Object Access: Filtering Platform Packet Drop (2) REG: NO REGISTRY INFO