Glenn FleishmanSenior Contributor, Macworld

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Glenn Fleishman is the author of dozens of books, including his newly released A Practical Guide to Networking, Privacy, and Security in iOS 10, a book that has information and step-by-step advice on connecting to and managing networks, and securing your data and your privacy. He's a senior contributor to Macworld, where he writes the Private I and Mac 911 columns and hosts the Macworld podcast, and contributes regularly to many periodicals.

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What to do when your Mac can’t mount, repair, or erase a drive

A reader can't get a drive working again, but the problem lies within (the computer).

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How to clear an incorrect unread email badge in iOS

A reader has a persistent red blot on his Mail app.

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Mic drop: How to keep snoops from listening to your laptop's microphone

Mark Zuckerberg put tape over his Mac's mic. That's not going to help.

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Can’t save a Microsoft Office document? Look for the forward slash

A reader can't save a file that he's able to open in Excel.

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BitCam and Exify: iPhone apps with a different approach to photography

Nostalgia ain't what it used to be. The Iconfactory looks backwards and forwards with two new camera apps.

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How to transfer a video from OS X to iOS

A reader finds herself stymied in moving a movie from Mac to iPhone.

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Podcast 514: You don’t know, Jack?

Headphone jacks (or the lack thereof), an end of Thunderbolt displays, and Dropbox’s new features, plus Swift Playgrounds in depth.

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When sharing an Apple ID creates iMessage and text message confusion

A reader’s family shares a single account, but wants to separate out messages. They can’t.

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How to hand off your Mac for repair without worrying about insecure data on an SSD

A reader would prefer to not send his computer off to get fixed with all of the contents of its drive being accessible to a technician. What to do?

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In defense of old Mac software

Plenty of older software is good enough, smart enough, and gosh darn it, still works. A writer keeps his old tools sharp.

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How to convert between music files formats in iTunes

A reader worries an iTunes conversion feature has been lost—it's still there, just obscure.

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How to set up a new Mac securely and update an older one

If you're setting up a Mac from scratch for yourself or for another person, you can make a number of baseline choices, but they're good for existing installations, too.

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How Media Services and Wi-Fi Assist can drain gigabytes of mobile data

A reader’s employee mysteriously used 84GB in about 12 hours, including overnight. Media Services is to blame.

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Podcast 513: Still coming down from WWDC

Oh yeah, there's definitely enough here for two podcasts. And then some.