Things You'll Need:
- Mac running OS X 10.4 or later
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Step 1
Log on to your computer with an account that has administrator privileges.
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Step 2
Open "System Preferences" by clicking on the icon in the dock.
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Step 3
Go to the "Software Update" control panel underneath the "System" category.
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Step 4
Click on the "Update Software" tab at the top of the control panel window.
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Step 5
Check the box next to "Check for updates" to enable automatic updates.
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Step 6
Choose a frequency--daily, weekly or monthly--from the drop-down menu to determine how often the computer will automatically check for updates.






