Wanna keep the file but don't want anyone else to know about it?

Well here are the simple steps which will help you keep your files protected from those damned scavengers and vultures trying to look into your system for your files whenever you give 'em your system.

I am posting the Screenshots below.

Well i have shown it using windows xp. Guys...if it's possible in xp it's possible in any other version that came after it. Just read the stuffs written in the screenshots and you will know how to do it.