screen lock

Windows Desktop Lock can simply lock your PC

Easy Drive Lock is a fast drive lock & green software

Vinasoft desktop lock is best rated security PC desktop lock available

A professional security tool to lock your folder and keep it safe.

It can lock your desktop so that none can use you computer.

Reliable tool to lock your PC and protect it from unauthorized usage.

Snappy Program Lock is a professional security tool for password protect

this application can lock a folder , using feature of OS registery

Pro-Key-Lock are powerful and easy to use utilities.

As a small usability touch, basically alerting users that caps lock is enabled