Glenn FleishmanSenior Contributor, Macworld

Glenn Fleishman is the author of dozens of books, including Take Control of Wi-Fi Networking and Security (updated for iOS/iPadOS 13 and Catalina), a detailed guide to wireless networking and security. He's a senior contributor to Macworld, where he writes Mac 911.

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Autocorrect suggests words and phrases in another language on your iPhone? Delete a keyboard to fix this

Autocorrection can be triggered in another language than the one you’re using via the Globe icon.

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How to manage new Sign in with Apple identities

Apple has added its own login option for third parties, but you have to hunt a bit to find the controls.

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macOS Catalina: How to make your iPhone and iPad appear on the Desktop

The Finder needs a slight adjustment to make items appear.

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Why you might see a new “Data” disk in Catalina

MacOS now splits the operating system and data files into two volumes, but they should never appear on the desktop.

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macOS Catalina: How to keep your internet radio favorites playing in the Music app

Apple has deleted the Internet Radio list, but still plays streams.

A MacBook running macOS Catalina.

How to stop getting a reminder to update to Catalina in macOS

If you’re not ready, you may not want the reminder.

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How to delete photos, links, and attachments from conversations in Messages

You can delete items you don’t want to keep or that you want to remove from taking up storage.

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Got a 32-bit app in Catalina? You don’t have to delete it

They won’t work, but you can choose to leave them in place.

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How to selectively choose what photos sync in Photos for Mac

The trick is using the Referenced File feature, which is a preference you can toggle at will inside the app.

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Where did that go? Find the parts of iTunes now spread throughout different apps in macOS Catalina

iTunes is dead. But the severed parts remain if you know where to find them.

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Can’t find your Time Machine backup after upgrading to Catalina? Look for a backupbundle

Time Machine typically creates a disk image you can mount to access files.

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iPhoto users, you’re out of time with macOS Catalina. What’s your next step?

Apple discontinued updates to iPhoto years ago, but not everyone migrated to Photos. Now you almost have to.

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How to switch from iCloud Photos to just plain Photos

Some folks don’t want to the recurring cost of iCloud. They can go local.

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How iCloud Drive works with multiple users on a single Mac

Fast user switching keeps users logged in and their activities running even though they’re not frontmost, including sync.