
Instead, the upgrade process may have enabled two security options that you may not have been using before. If you find yourself occasionally being logged out of your Mac after you upgraded to macOS High Sierra, you can stop worrying your Mac isn’t possessed. Our recommendation is not to encrypt your external drive, unless converting to APFS is acceptable to you, and you have no plans to use the drive with earlier versions of the Mac operating system. In either case, the external drive won’t be recognizable by the older operating system. The problem comes about should you ever connect the drive to a Mac running an earlier version of the Mac operating system, or if you boot your Mac to an earlier version of the OS. If these two conditions are met, and you select the option to encrypt the drive, by right-clicking the drive icon and selecting Encrypt from the popup menu, the drive will be converted to APFS format and then encrypted.Įven though the drive has been converted to APFS and encrypted, it will continue to work just fine with your Mac running macOS High Sierra.

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Full disk encryption has been a boon for Mac users who worry about their personal data being easily accessible on their Macs or external drives.
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The tradition lives on with macOS High Sierra, so we’re gathering a list of what High Sierra broke and how to fix it (when you can).Įncrypting an entire drive to add a level of security has been an easy task in the Mac OS ever since FileVault 2 was released as part of OS X Lion. It seems with each new version of the Mac operating system, there are some features that just don’t seem to work the way they used to. It’s almost become a tradition one that we wish we didn’t have to put up with.
