How to Password Protect Access to My Computer
Adding password protection to your computer will prevent anyone else from logging in to your account. Adding additional layers of security is important, especially if your computer is in a public area such as an office. Creating a password is a quick process whether you use Windows or a Mac operating system.
Windows XP or Windows 7
Double-click on "My Computer" and open the Control Panel.
Click on "User Accounts."
Click on "Create a password for your account."
Enter the desired password. You will be prompted to enter it twice. Beneath the password box, type a password hint.
Click the "create password" button.
Restart your computer. Select your account from the welcome screen, and enter your password.
Open system preferences from the Apple menu. Click on "Security."
Check the box next to "disable automatic login." Return to system preferences.
Click on "Accounts."
Click on "Login options.'"Under Display login window, select name and password. When you first set up your Mac, you had to choose a name and password. These will be used for your login.
Close system preferences and restart your computer. Login.