To create an undeletable or unrenamable folder using cmd

Hi guys,today i am going to show how to make and undeletable or unrenemable folder using cmd in windows xp.

1.) Click start and press run.

2.)Type cmd and click ok in the run

3.)Now(You cannot make a folder in C drive if windows is installed in C drive),just type D: or any other 
    drive and press enter.

4.)Now type md con\.You can also use md aux\ , md lpt\1 , md lpt2\ , md lpt3\ , md lpt4\ , md lpt5\ ,
    md lpt6\ , md lpt7\ , md lpt8\ , md lpt9\ . That's it.
(Note : You should only use the keywords above,like con,aux,lpt1 to lpt9).

To delete the folder you created,follow these steps,

1.)Again,open cmd.

2.)Type the drive you created the folder.For example,D:
 
3.)Type rd con\ or any one you gave.For example - rd aux\.The folder will be removed.That's it.