How to superhide folders without softwares

It is a 100% safe and free method to hide a file or folder from others in your system without
using any application.For this ,open dos prompt and type:
For Hide:
X:\> attrib +a +r +s +h foldername /s /d [enter]
For unhide:
X:\> attrib -a -r -s -h foldername /s /d [enter]
X= x is location for our folder in hard disk.
Limitation:
If hide protected operating system option is uncheck in folder option, victim can see ur files