_WHEA_ERROR_RECORD_HEADER_VALIDBITS

//0x4 bytes (sizeof) union _WHEA_ERROR_RECORD_HEADER_VALIDBITS { ULONG Timestamp:1; //0x0 ULONG PlatformId:1; //0x0 ULONG PartitionId:1; //0x0 ULONG Reserved:29; //0x0 ULONG AsULONG; //0x0 };