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Step 1
Start up "System Preferences" from the Mac OS Panther menu, "Applications" folder or the "Dock."
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Step 2
Select "Security" from the topmost group ("Personal"). It is located at the far right of the icon list and is accessed with a single click on the icon.
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Step 3
Review the top section (the upper half of the "Security" window). You will be informed if you do or do not have "File Vault" enabled.
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Step 4
Make your choices about setting a "Master Password" and whether or not to use "File Vault" before leaving the top half of the window.
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Step 5
Review the features available in the bottom half of the "Security" window. You can choose to require a password to wake your Mac from sleep or screen saver, require a password to unlock any secure preference, disable automatic logins and set the computer to log out after a certain period of inactivity.
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Step 6
Exit "Security" by closing its window (Command-W from the keyboard, or click the red close button at the upper left of the window) if you want to leave "System Preferences" running. Alternatively, you can exit "Security" and "Quit" the "System Preferences" application with a Command-Q keyboard command or by selecting "Quit" from the "System Preferences" menu.






