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    How to Lock Your Computer When Away

    3 min read
    Updated 13 December 2025

    Why Lock Your Computer?

    When you step away from your desk, even briefly:

    • Anyone could access your emails
    • Someone might see confidential information
    • Actions could be taken in your name
    • It's a security requirement in most workplaces
    Locking takes one second and becomes habit quickly.

    How to Lock Your Computer

    Windows

    Keyboard shortcut (fastest): Press Windows key + L

    Using the Start menu:

    • Click the Start button
    • Click your user icon
    • Click Lock

    Mac

    Keyboard shortcut (fastest): Press Control + Command + Q

    Using the menu:

    • Click the Apple menu
    • Click Lock Screen
    Hot corner (convenient): Set up a hot corner in System Preferences to lock when you move your mouse to a corner.

    Setting Up Automatic Lock

    Configure your computer to lock automatically after a period of inactivity.

    Windows

    • Click Start > Settings
    • Click Accounts > Sign-in options
    • Under Require sign-in, select When PC wakes from sleep
    • Go to System > Power & sleep
    • Set screen to turn off after a short time

    Mac

    • Click Apple menu > System Preferences
    • Click Security & Privacy
    • Check Require password after sleep or screen saver
    • Set to immediately or a short time

    Tips for Staying Secure

    Always lock when:

    • Going to a meeting
    • Getting coffee
    • Using the bathroom
    • Taking lunch
    • Leaving for the day
    Make it a habit:
    • Lock every time you stand up
    • It becomes automatic after a week
    Remember:
    • Locking doesn't close your programs
    • Your work is still there when you return
    • Just enter your password to unlock

    Locked Out?

    If you forget your password, contact IT for help resetting it.

    Need Help?

    For computer security help, contact helpdesk@netlumait.com.au or call 1300 521 162.

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