Desktop Lock for windows
Desktop Lock is a computer security protection and access control software product, you can use it to lock computer to prevent people from accessing your private documents and resources. When the computer is locked by Desktop Lock, none can access your documents, browse your computer, or use programs on your computer.
You can lock your computer by one click, or let Desktop Lock to automatically lock your system at any time or when system becomes idle. You can customize the appearances of the locked desktop with the options provided by Desktop Lock. Desktop Lock also supports hotkey to lock the system.