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This chapter is from the book

Locking and Unlocking Preference Settings

Some preference panes are locked for security reasons. If preference settings are all grayed out, the preference pane is locked to prevent non-administrators from making changes. Check the Lock icon at the bottom of System Preferences. If the Lock icon is locked, you need an administrator name and password to unlock it and make changes. If you log in as an administrator, the Lock icon is unlocked, unless you set a security option to have the preference panes stay locked. When you close the preference pane, it locks automatically.

Unlock a Preference Pane

  • bluecircle_1.jpg Click the System Preferences icon in the Dock.
  • bluecircle_2.jpg Click the preference pane icon (such as Security) that you want to lock settings.
  • bluecircle_3.jpg Click the Lock icon.
  • bluecircle_4.jpg To unlock, type an administrator name and password.
  • bluecircle_5.jpg Click Unlock.
  • bluecircle_6.jpg Click the Close button.

Set Preference Panes to Lock

  • bluecircle_1.jpg Click the System Preferences icon in the Dock.
  • bluecircle_2.jpg Click the Security & Privacy icon, and then click the General tab.
  • bluecircle_3.jpg If grayed out, click the Lock icon, type an administrator name and password, and then click Unlock.
  • bluecircle_4.jpg Click Advanced.
  • bluecircle_5.jpg Select the Require an administrator password to access system preferences with lock icons check box.
  • bluecircle_6.jpg Click OK.
  • bluecircle_7.jpg Click the Close button.
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