How to creat unrenameable,undeletable file

               How to creat unrenameable,undeletable file

1. Go to start
2. Type cmd
3. Type D: \ in cmd   {Pleae note that you can create unrenameable,undeletable file not in C: drive. }
4. Type :- md con\.   {And pres enter.}
5. Now go to D: drive and see its created
6. Try to delete it.{It will not be deleted}'
7. Type rd con\   {And pres enter.}

It will be deleted.

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