#ifndef _NTEXAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)
#if (PHNT_VERSION >= PHNT_WINDOWS_8)

/**
 * The NtFilterBootOption routine filters boot options based on the specified operation, object type, and element type.
 *
 * \param FilterOperation The operation to be performed on the boot option. This can be one of the values from the FILTER_BOOT_OPTION_OPERATION enumeration.
 * \param ObjectType The type of the object to be filtered.
 * \param ElementType The type of the element within the object to be filtered.
 * \param Data A pointer to a buffer that contains the data to be used in the filter operation. This parameter is optional and can be NULL.
 * \param DataSize The size, in bytes, of the data buffer pointed to by the Data parameter.
 * \return NTSTATUS Successful or errant status.
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtFilterBootOption(
    _In_ FILTER_BOOT_OPTION_OPERATION FilterOperation,
    _In_ ULONG ObjectType,
    _In_ ULONG ElementType,
    _In_reads_bytes_opt_(DataSize) PVOID Data,
    _In_ ULONG DataSize
    );

#endif
#endif
#endif
View code on GitHub

#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwFilterBootOption(
    _In_ FILTER_BOOT_OPTION_OPERATION FilterOperation,
    _In_ ULONG ObjectType,
    _In_ ULONG ElementType,
    _In_reads_bytes_opt_(DataSize) PVOID Data,
    _In_ ULONG DataSize
    );

#endif
View code on GitHub