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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Printer preference pane freezing? Here’s how to reset macOS’s printing system

If you don’t see printers and every move you make causes rainbows to appear, try these options.

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What to do if you’re worried about the legitimacy of a downloaded software installer

Apple developers get an extra layer of security that you can check.

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How to create a backup plan to restore passwords if your system fails

Having multiple copies of your data is great, unless you can’t access passwords required to unlock them.

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How to open items in the enclosing folder directly from a Spotlight search in macOS

There’s a keyboard shortcut and a few other hidden tricks.

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Apple ID: How to change your email address

If you’re about to leave a job or abandon an address, make changes first.

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A Windows update may have broken your Mac’s access to shared servers. Here’s how to fix it

The update invalidates credentials, but doesn’t explain how to re-connect.

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macOS Mojave: No more controls for photo album screensavers

You can no longer go backwards and forwards through images in the photos you selected.

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Trying to make an old Apple display work with your new Mac ? It’s no longer worth it

At some point, you have to cut the cord. Modest- and mid-sized monitors are more affordable than ever.

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Google Calendar sync with macOS was broken

It appears to be Google’s problem, and you’re not alone.

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Make sure you save your data before deleting an Apple ID account

If you’ve created multiple Apple IDs and you’re trying to clean things up, here’s how to make sure you properly save your data.

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How to restore items for an external drive that’s backed up using Time Machine

Apple makes it hard to find external storage devices that are backed up using Time Machine, but it’s there.

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YubiKey 5Ci review: WebAuthn encrypted Lightning key for iPhone and iPad for secure authentication

Apple’s full-throated browser support is yet to come, but several apps already handle the advanced encrypted second-factor hardware. The device also includes USB-C for desktop use.

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How to use Google Maps’ re-routing option on the iPhone

Google offers alternate routes if you know where to look in iOS.

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How to get a Safari password to save it in a password manager

Safari is helpful at generating passwords, but that Safari-generated password may not be saved in third-party password managers.

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How Time Machine manages its file archive and how it affects what you can restore

Time Machine deletes files in its backup, but the deletion process only removes older versions of files.