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Need advice on OS upgrade options

Just purchased a refurbished iMac, circa 2008. It has El Capitan v 10.11.6 for OS. Has 4 GB memory and 250G hard drive. I need to upgrade the operating system; but seems I can't find an option that works - Catalina, even higher El Capitan. Any suggestions?



iMac, OS X 10.11

Posted on Apr 17, 2020 10:21 AM

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Posted on Apr 17, 2020 10:38 AM


The version after El Capitan is Sierra but that isn't compatible with a 2008 iMac (it is 2009 and later). See: How to upgrade to macOS Sierra - Apple Support


Also, 10.11.6 was the last update of El Capitan but there were security updates that you may want to see if you have. See: https://en.wikipedia.org/wiki/OS_X_El_Capitan

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Apr 17, 2020 10:38 AM in response to jfolk01


The version after El Capitan is Sierra but that isn't compatible with a 2008 iMac (it is 2009 and later). See: How to upgrade to macOS Sierra - Apple Support


Also, 10.11.6 was the last update of El Capitan but there were security updates that you may want to see if you have. See: https://en.wikipedia.org/wiki/OS_X_El_Capitan

Need advice on OS upgrade options

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