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Question: Upgrade macOS High Sierra or update

My son shut down his MacBook Pro yesterday during an upgrade or update, not sure which, because it was taking too long. Now he receives a message "Your computer restarted because of a problem. Press a key or wait a few seconds to continue starting up." "panic(cpu 2 callerBxfff.... " Does anyone know what to do with this?

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I rebooted then held Command R and a list of actions came up I added the new High Sierra somehow and it worked IDK how I actually did it but it's fixed, Thanks Kappy, your advice led me to the recovery link ;-)

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Nov 12, 2017 11:14 PM in response to sonya777 In response to sonya777

I rebooted then held Command R and a list of actions came up I added the new High Sierra somehow and it worked IDK how I actually did it but it's fixed, Thanks Kappy, your advice led me to the recovery link ;-)

Nov 12, 2017 11:14 PM

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Question: Upgrade macOS High Sierra or update