Don't-Miss OS X Stories

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How to use Picture in Picture in macOS Sierra

Watch video while you're working on your Mac.

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How the NetInstall Service works

Before using the NetInstall service, understand how it works and to learn about the four different types of NetInstall images.

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How to manually exclude images from a Smart Album in Photos for OS X

A reader wants to customize the results of a Smart Album, and we found a workaround.

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Nope, you can't tell if someone has received your Mail Drop file

Apple doesn't provide an acknowledgement loop for email attachments sent by Mail Drop, and you can't "remove" files from Mail Drop either.

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Bluetooth's soft limits in OS X: Count your devices

A reader finds a common problem: Too many Bluetooth devices connected to one Mac can perform inconsistently.

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How to set a custom order in an album in Photos for OS X

My 9-year-old came to me with a question about arranging photos in an album in OS X.

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How to exclude your iCloud Photo Library from an iTunes backup

A few readers find even with iCloud Photo Library enabled, an iTunes backup of an iPhone or iPad still includes all locally stored photos.

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Mastering the NetInstall Service: Network and system requirements

Before you can begin using the NetInstall service you need to make sure you have a few basics in place.

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Ask the iTunes Guy: Changes in iTunes 12.4

When iTunes is giving you grief, turn to Kirk McElhearn.

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How to master the NetInstall service

Get a leg up on imaging and make it easier for you to deploy Macs in your environment.

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Should two-factor authentication let me verify via a single device?

A reader wonders if something's wrong, because Apple's second-factor system lets him approve a connection from a seemingly odd place.

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How to upload a photo from Photos for OS X to a website

A reader wonders how to find images in Photos to upload via a selection dialog.

The power of OS X’s menu bar

It’s always there and it’s often overlooked, but the menu bar is a very useful part of the Mac operating system.

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What to do when a hard drive won’t unmount in OS X El Capitan

When OS X won't let you unmount a flash drive or external hard drive, here’s what you can do.

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What to do when OS X asks for an old Apple ID

A reader wants to stop prompts on his hand-me-down computers from asking for his Apple ID instead of that of the current family member using it.