Password protect folders/hide

I want to be able to password protect and hide some folders. This is just work folders/pictures etc.

I use to have folder guard but it is terrible. Only sometimes working.

can any one reccomend a free piece of software? I don't fancie paying but might have to in the end.

Lock Folder XP, but it's NOT FREEWARE.

http://www.everstrike.com/lock_folder.htm

Saw this one yesterday, It looked good.

A SourceForge.net open source software search: Lock Folder

Just make sure if you try something that it states it's for Windows, or Win32.

True crypt:

http://www.truecrypt.org/