Free secure lock software for windows

Screen Lock 3 provides an easy and completed way to keep prying eyes out of your work. This version does have an easily changeable password utility just as past versions had stated.

DopeCode Lock is a start menu utility that adds a new command to the content menu which let you lock your files. DopeCode Lock will add a Lock command to the context menu of all files in the system.
When you lock a file, you are presented with a dialog box asking for a password. Once youve selected the password, the file will be encrypted and password protected.
Main features:
- Lock personal files on shared computers.
- Lock attachments so that if emails are intercepted they cannot be read.
- Protect personal data before burning to CD or writing to a floppy.
- Share important files with friends who know the files password.

Matrix Screen locker is a system tray application that allows for quick and secure PC lock when you wish. Matrix Screen locker is a system tray program that allows for quick and secure PC lock when you wish.
The screen does a "matrix style" scrolling characters effect when the lock is running.

Simple Desktop Lock 1 brings you an easy an effective way to physical security of your desktop. Despite the name this application is in no way simple. Using multiple methods to ensure a stable secure lock this program also offers many stylish options for users.

Unlike using the average dull windows login screen to lock your desktop, you can choose between four different styles of protection (solid color, picture, movie, flash). You can not only visually secure your desktop, but you can also play background music.