We have already posted a lot more on file and folder locking previously like how to lock folders in XP with and with out software and also how can you create super hidden folder in windows.
Yesterday, I found two small and easy to use FREE utility to lock files and folders for vista but also work for windows XP also.
One of the utility is called My Folder and Instant Lock, both of these programs are freeware.
Let discuss the working of both of these folder locking programs one by one.