Reinstalling macOS High Sierra from Recovery Tools takes many hours on 2016/2017 MacBook Pros

by Swisher Sweet   Last Updated January 12, 2018 21:12 PM

I have recently purchased two new MacBook Pros. One is a 2016 13" MacBook Pro, the other a 2017 15" MacBook Pro. On both of them, I have had to reinstall macOS High Sierra from the Recovery Tools. On both machines, it has taken over 5 hours to install.

These aren't the low-end Mac Pros, these are the maxed-out config-to-order, with upgraded processors, drives, and RAM. So it is unfathomable that it would take so long to install macOS High Sierra.

I am currently waiting for the 15" MacBook Pro to install High Sierra going on 6 hours now. The progress bar does move, but ever so slightly. The "time remaining" is always 1 hour +/- 30 or so minutes, but obviously that isn't accurate.

It is normal for macOS High Sierra to install this slowly on these machines? If not, what can I do to reinstall the software more quickly?

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