Configure Your Mac OS X Computer to Lock Your Screen After a Period of Inactivity

Prerequisite: You enter a password to log into your computer

  1. Launch System Preferences (Apple → System Preferences…).
  2. Click “Security” preference.
  3. Check the box labeled “Require password to wake this computer from sleep or screen saver.”
  4. Click “Show All” button.
  5. Click “Desktop & Screen Saver” preference.
  6. Click “Screen Saver” tab.
  7. Drag the “Start screen saver” slider to a desired starting time; for example, 5 minutes.
  8. Click the “Hot Corners…” button.
  9. Click on any of the available drop-down boxes, choose “Start Screen Saver”, and click OK.
    • Moving your mouse to the selected corner of your screen will now start the screen saver and effectively lock your screen on demand.
  10. Click the “Show All” button.
  11. Click “Energy Saver” preference.
  12. (If applicable) Click the lock to make changes and authenticate.
  13. Drag the “computer sleep” and “display sleep” sliders to desired starting times.
    • Note: computer sleep > = display sleep > = start screen saver.
  14. Quit System Preferences.

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