Password-protect your account: 10.6 (Snow Leopard) and 10.7 (Lion)

To password-protect your account on Mac OS X (10.6 and 10.7), follow these steps:

  1. From the Apple menu, click System Preferences.
  2. In the System Preferences window, click the Accounts (10.6) or Users & Groups (10.7) icon in the fourth row, highlighted in the following graphic:
    accounts gif
  3. You will see the Accounts (or Users & Groups) window, which should look similar to the following:
    accounts window
  4. If the lock icon in the lower-left hand side of the window is locked, click it to unlock it.
  5. At the bottom of the left-hand column, click Login Options.
  6. Confirm that Automatic login is Off (OS 10.6 and 10.7).
  7. Click the lock in the lower-left corner of the window to prevent further changes. The window should now look similar to the following:
    login options
  8. NOTE

    If you want to make changes to these options in the future, you must click the lock in the lower-left corner of the window and type the Admin password to unlock the page to access these options.