Your password is required to start using the computer again. Move your mouse to the corner you set up as your Hot Corner. If you've set up a Hot Corner using the previous procedure, you can use this procedure to lock your screen without waiting for the screen saver to start. Make sure you also check the box for Disable automatic login. Next, set up a Hot Corner so you can quickly activate the screen saver when you leave your computer.Ĭlick Screen Saver, and then click Hot Corners.Ĭlick the list next to the corner of the screen you want to use as a hot corner and select Start Screen Saver, and then click OK. To activate password lock on your Mac: Go to System Preferences. How to Set Up a Hot Corner to Lock Your Screen Manually When your computer has been inactive for the set interval, the screen saver starts. How to Set Your Computer to Lock Your Screen Automaticallyįrom the Apple menu, choose System Preferences.Ĭlick Screen Saver, and then use the slider to choose 15 minutes (or less).Ĭlick Show All to go back to the main System Preferences window.Ĭlick Security, and then click Require password to wake this computer from sleep or screen saver. You can also lock your screen manually using a Hot Corner. You should set up a screen saver that will start after your computer has been idle for a set interval (15 minutes or less). When you leave your computer, it’s best to start a screen saver that can only be turned off with a password.