TL:DR; Lock My PC Free Edition is a good and free alternative to standard Win+L Windows lock.
Lock My PC Free Edition is a good and free alternative to standard Win+L Windows lock. Use it every time when you leave your computer unattended.
PDF Anti-Copy is a free PDF security utility that prevents PDF content from being copied and converted to editable formats. After processed by this tool, the PDF content could be viewed, but will never be copied and converted to editable files.
Perfect Keylogger helps you to find out what they are doing on their PC. With this key logger you will receive their keytrokes, chats, websites, screenshots and passwords by email. Remote surveillance - as easy as never before!
Supervise and record : all which is typed on your keyboard, used programs, mouse activities and all visited Web sites. Record periodically the screen capture. Close automatically any program where a predefined word or web address is typed or visited