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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
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
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
- Lock every time you stand up
- It becomes automatic after a week
- 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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