How to lock(set a password) a folder without downloading a software?

Question

How to lock(set a password) a folder without downloading a software?

Answer 1

zip your file and click on file on the zipped file and it should say add password hope this helps

Answer 2

Here is a short video that will show you how to do it.

http://www.metacafe.com/watch/444905/pas...

Answer 3

Im not sure if you can but why not try and hiding them Its more effective.

http://www.techsupportalert.com/how_to_h...