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down loaded catalina 10.15.01 onto Mac desktop but wont open

down loaded catalina 10.15.01 onto Mac desktop but wont open says it need 10.15

Posted on Dec 2, 2019 10:27 PM

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Dec 2, 2019 10:48 PM in response to ros225

You just have the update. You need the complete installer.

How to upgrade to macOS Catalina - Apple Support

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down loaded catalina 10.15.01 onto Mac desktop but wont open

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