How to password protect folders on the admin. account?

[fol]

I don't mean like with "LocK A FoldeR", I want to be able to password protect certain folders from all users (including me, the admin., so that I have to give a password every time I want to see the content of that folder).
Going to a boarding school soon and I don't want people messing around with my documents (or my adult folder, for that matter ;p). Is this actually possible, either for Win7 by default or using a software?

 

[derekimo]

We just happen to have an excellent tutorial for that,

http://www.sevenforums.com/tutorials/241427-truecrypt-encrypt-data-folders.html