It looks like the latest (10.13.4) macOS High Sierra update has a few bugs that are causing Macs to go into recovery mode upon installation completion. Some people have been able to boot into the new updated OS, but a lot of others can’t. Consider this a public service announcement if you’re an [H] Mac user.



According to numerous reports, there doesn’t appear to be anything wrong with users’ Macs – internal drives report that they’re fine. And the issue is affecting a range of different Apple-branded computers from different years.

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Source: [H]ardOCP – You Might Want to Hold Off on Upgrading macOS High Sierra