디스크 상태를 변경하고 싶다면 아래와 같이 함수를 작성하면 됩니다 #define IOCTL_DISK_SET_DISK_ATTRIBUTES CTL_CODE(IOCTL_DISK_BASE, 0x003d, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS) #define DISK_ATTRIBUTE_OFFLINE 0x0000000000000001 typedef struct _SET_DISK_ATTRIBUTES { ULONG Version; BOOLEAN Persist; BOOLEAN RelinquishOwnership; BOOLEAN Reserved1[2]; ULONGLONG Attributes; ULONGLONG AttributesMask; GUID Owner; } ..