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I’ve written that Apple adopted for both iOS and—with macOS 10.13 High Sierra—for SSDs that are a Mac's boot volume. What's new skype for business mac. While questions have largely tapered off in recent weeks after a spate of issues with, people are clearly still wrestling with some of the details. IDG A Macworld reader can’t get the HFS+ option to appear, but that’s by design.

Macworld reader Andrew wrote in asking about reformatting his High Sierra system, and wanting to choose HFS+ (Mac OS Extended, Journaled). However, after, the Disk Utility app only offers up APFS options. MacOS Recovery is in sync with High Sierra, and Apple converts a boot SSD volume into APFS when you install High Sierra.

While that was optional during High Sierra’s public beta period, it became mandatory and unavoidable on release. As a result, even trying to erase a boot SSD volume only presents APFS options. It’s possible you could force HFS+ on a boot SSD with High Sierra with some Terminal monkeying around, but I can’t see that would end well, and I’m not sure it offers any advantages. It’s too risky to recommend. However, if you’re trying to downgrade to Sierra or an earlier version of macOS, I would of that version of macOS, start up your Mac from it, and then use Disk Utility within Sierra or earlier to reformat the SSD with HFS+. Then you can install previous versions of macOS on that Mac. Ask Mac 911 We’ve compiled a list of the questions we get asked most frequently along with answers and links to columns: to see if your question is covered.

If not, we’re always looking for new problems to solve! Email yours to including screen captures as appropriate, and whether you want your full name used. Every question won’t be answered, we don’t reply to email, and we cannot provide direct troubleshooting advice.