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I have Maverick and the option to Upgrade to OS X El Capitan pops up. I don't want to do this. Ever. How do I disable this notification?

  • What's wrong with El Capitan? I runs amazing well on my ancient 2009 MacBook Pro. – RedEagle2000 Apr 4 '16 at 3:32
  • I have no personal experience with this, but there may be 32 bit vs 64 bit issues. – Al Lelopath Apr 4 '16 at 15:45
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In System Preferences go to App Store and disable Automatically check for updates.

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