How can you put a password on a folder?

There are a few good Freeware programs for this purpose.

With some, when the folders are protect they are not even shown on Windows explorer,

for normal use this is OK, but a serious hacker who knows what he is doing could access your files and folders.

Or you can use the third party software such as Kakasoft Folder Protector to passWord protect the folders in your computer or external hard drives. For more information, please visit: http://www.kakasoft.com/folder-protect/