Don't-Miss OS X Stories

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Where to find Safari’s downloads list

The downloads button plays hide-and-seek with Mac users.

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How to downgrade your Mac to an older version of OS X using an external drive

A reader needs an older version to use Adobe software, but Mac 911 is reluctant to advise it.

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The best way to migrate an old Mac’s system to a new Mac

A reader wonders which option to choose among several.

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How to remove items from the macOS Bluetooth menu

A reader wants to clean up their list of Bluetooth devices.

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How to install an app in macOS Sierra that’s not signed by a developer

Sierra makes a small change in launching less-validated software, but it's still there.

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How to set up the Wiki Service in macOS Sierra Server: Create and edit a Wiki

The Wiki Service is a great collabroative tool for your company or school. This how-to shows what you need to do to make your Wiki active on your network.

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What to do when Apple tells you there’s not enough storage to re-sync iCloud Photo Library

Turning iCloud Photo Library off and back on forces a full resync and requires twice as much storage.

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How to set up the Wiki Service in macOS Sierra Server

The Wiki Service is a great collabroative tool for your company or school.

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How to map a different key for Command and other modifiers

A reader uses a non-Mac keyboard and wants to set the right keys for extras.

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Setting up macOS Sierra Server's Contacts Service

How to set up Contacts Services for access on your network.

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Missing mail? Press Command-L

A reader finds a new macOS shortcut in the Mail app perplexed experts.

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How to use the advanced Calendar Service features in macOS Sierra Server

Make adjustments to get the most out of macOS Server's Calendar Service.

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How to change your login screen in macOS (and change it back)

A reader did the unthinkable; now he wants to revert.

How to remove Snapz Pro in macOS Sierra

While it's a specialized app, we've received a number of queries about how to remove it.

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How to stop getting beta updates for macOS Sierra

If you participated in the Beta Software Program, you still have access to beta updates of Sierra.