Glenn FleishmanSenior Contributor, Macworld

Glenn Fleishman is the author of dozens of books, including his newly released Take Control of Your Apple ID, a guide to troubleshooting Apple ID problems and managing security and the features. He's a senior contributor to Macworld, where he writes Mac 911.

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What to do when Photos for Mac says your external drive uses an unsupported format

A reader wants to shift their Photos library to an external drive, but received an unexpected error message.

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What’s that weird app folder doing in your iCloud storage?

It may seem like something hacked your iOS device, but the explanation can often be simpler. It may have something to do with other software you’re using from a developer.

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How to disable Optimized iCloud Drive storage with a single click

If you want to always keep iCloud Drives files available on your Mac, uncheck a box.

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How to fix a 1Password sync problem

A popular password safe sometimes disconnects from its vault.

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Amped Wireless Smart Strip review: Most effective when it's paired with an Amazon Echo or Google Home

You can control its three outlets and two USB ports independently, but its app has weak timer features and no scene-control functions.

on techhive.com

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How to consolidate media from old apps into a single Photos library

If you want to consolidate old iPhoto and Aperture libraries, you need a third-party app to deal with the duplicates.

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How to transfer music between two iOS devices

Transferring files between two iOS devices—without using a third computer—is a little tricky

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Why you shouldn't rely on iCloud Drive as your only backup

You could wind up with data stored only in iCloud, offering a single point of failure.

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How to remove your FileVault recovery key from iCloud

You can use Apple iCloud for escrow, but here's how to store the key stored locally if you change your mind.

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The problems with older Apple displays and Thunderbolt 3 MacBook Pros

While you can connect many models of Apple displays to a laptop via USB-C, you can’t pass power, too, in a reliable manner.

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How old can your version of iOS be before upgrading?

Apple appears to have designed its backups with the future in mind.

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AirPlay 2, macOS, and the limits of the HomePod

Stereo playback hasn’t yet come to system audio output or other apps because it relies on AirPlay 2.

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One workaround for merging two Apple ID accounts

Apple doesn’t let you combine IDs, but if one is new, you could just give it up.

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How to securely dispose of old storage media, like hard drives and SSDs

You can digitally wipe out data from a hard drive or SSD, but in some situations, you might need to physically destroy the media.

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iOS: How to declutter Look Up

Look Up allows you to see dictionary definitions and more of selected words. Here’s how to adjust Look Up so it’s not so cluttered.