Glenn FleishmanSenior Contributor, Macworld

Glenn Fleishman is the author of dozens of books, including his newly released Connect and Secure Your iPhone and iPad (covers iOS 13.1 and iPadOS 13.1), a detailed guide to networking, privacy, and encryption. He's a senior contributor to Macworld, where he writes Mac 911.

airport extreme

Can you replace a fan in Apple’s AirPort Extreme?

It’s not a trivial task, but it can be done. (And yes, the AirPort Extreme has an actual fan.)

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What to do when the Mac App Store won’t assign applications to your account

You have several methods to try to resolve the problem.

macos mojave calendar export

What you get when you export Calendar and Reminders in macOS, and how to use those files

The archive formats vary by app and by export selection in Calendar.

macos high sierra recovery mode reinstall

Stuck in macOS Recovery with a language you don’t speak? Here’s what you can do to fix this

You don’t have to speak Chinese, Russian, Spanish, or other languages to fix this problem.

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The most important thing to do if your Mac has a Fusion Drive: Back up your data

Apple's Fusion Drive combines data on an SSD and hard drive. It provides fast speeds and spacious storage, but trying to recover lost data is a huge problem.

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If macOS’s Migration Assistant fails, here are other ways to move accounts

Apple has taken great strides with its migration helper, but it doesn’t always do the trick.

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How iOS’s Wi-Fi Assist works and how it can affect your cellular bill

A bad Wi-Fi connection can still cause your iPhone (or iPad) to use cellular data.

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Can’t figure out how to type a character on a Mac? It’s time for the virtual keyboard

There’s a hidden virtual keyboard in macOS that is very helpful when you need to type an uncommon character or your hardware keyboard is suddenly malfunctioning.

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If you have an older Mac, don’t forget about the SD Card slot

This is probably the best way to expand storage.

25yrs indy mac apps

The old guard of Mac indy apps has thrived for more than 25 years

BBEdit and other popular indy Mac apps have been around for over 25 years. Here are insights from over a century of development of Mac apps from four long-term developers.

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What to do whe you caot type certai letters o your MacBook

Apple has a repair program for folks with problematic MacBook and MacBook Pro laptops with the butterfly keyboard.

apple id login page

Can you disable two-factor authentication on your Apple ID?

Two-factor authentication (2FA) provides an effective way to deter people from hijacking an online account. But there's no turning back once it's on.

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How to set up a Mac and macOS to take advantage of an SSD and external storage setup

If you set up your Mac correctly, you can get the best of both worlds.

apple maps

How to submit corrections for Apple Maps labels

Where reality and Maps differ, you can set things right.

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How’s your iPhone battery health? Use the Battery settings to find out

Apple added and improved tools to check on battery usage and its current state.