Creating a password on an Acer laptop helps to protect your company's data from prying eyes. The problem with passwords is that the less guessable they are, often the more forgettable they are, too.

Microsoft Windows has system recovery options available through an advanced startup menu. When powering on the computer, you can enter the startup menu and select the system recovery options you need.

We generally use passwords to lock people out of our computers. But Instructables user Thomas_Kirkup found a way to use an actual, physical key—like the one on your door—to lock and unlock your PC.