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On the new I-Mac 27” can I still start for an external Hd usb

I am getting a new iMac 27 Can I still start up from an external Hd that has an older operating system installed


Posted on Jun 4, 2020 10:23 AM

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Posted on Jun 4, 2020 10:35 AM

No, a new iMac can only run Catalina and later macOS's.

see > Use the Mac operating system that came with your Mac, or a compatible newer version - Apple Support

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On the new I-Mac 27” can I still start for an external Hd usb

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