copy
//0x8 bytes (sizeof)
union _MM_STORE_SUB_KEY_DESCRIPTOR
{
    struct
    {
        ULONG KeyType:2;                                                    //0x0
        ULONG Spare:10;                                                     //0x0
    } Flags;                                                                //0x0
    VOID* VirtualAddress;                                                   //0x0
};