how to protect a word document with password...

Today i am going to show how to put password to word document other individuals does not open...
PROCEDURE:-
1.open the document(which want to protect) and click save as option
2.AT the pop up window click 'Tools' then scroll down to General options and choose a password.for more assistance see below screen short

3.Choose a password for opening a document.

4.following result will be like this..