How to apply password to a folder for free?

If you share your computer and face difficulty to protect your folder by merely hiding them. You can easily password protect your folder for free. I am giving you list of freewares :


1.BudoLock

2.DirLock

3.Encrypt for all

4.Secret Secure Lock

5.Deny Access

6.My Locker

7.Penyu Locker 1.0