If you have a small child, then you will benefit from a small program Toddler Keys, which can be downloaded for free.
Toddler Keys can lock the keyboard, mouse, and drives, and starting with Windows XP, it is possible to lock the computer and power buttons.
As a reward to being a toddler, start by using your toddler keys twice.You're able to place your child safely in front of your computer. To start the feature, hit on its icon, then click "Select Programs" -> all you have to do is press two keys to start it. In addition to that, any images or sounds of This program will introduce the theme of looking at the pictures or pictures featured in cartoon characters, as your child is playing a detection role, suggesting that he or she has no real interest in exploring the objects.
After exiting the lock mode, simply enter your password, and you can restore access to all operating functions. Make your child forget it's on a computer while you do your business with Toddler Keys.