You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

4 points

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

Top-ranking reply

Level 10

82,570 points

Posted on Jun 4, 2020 10:35 AM

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

View in context

Similar questions