Don't-Miss macOS Stories

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How to restart your Mac remotely

A reader has the need to reboot his Mac when far away from it.

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How to reinstall macOS when the startup volume was erased

A reader preparing their Mac for sale has a well-meaning friend erase the startup volume.

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Photos for iOS and macOS: The limits of liked photos

Apple doesn’t let you use popularity for selection or sorting, and has two kinds of “likes.”

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Installing macOS or OS X: What to do when ‘the installer payload failed signature check’ or ‘this copy of the install OS X application cannot be verified’

If you encounter an error when trying to install a fresh operating system, it could be a problem with the date and time.

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How to show the All My Files icon in the macOS Sidebar

One of the most useful features of macOS lets you see your files from newest to oldest.

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How to sync past events in your Calendar on your iPhone and Mac

To keep a proper record of your calendar, you need to adjust a setting in iOS.

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How to use TinkerTool System 5 to set folder permissions in macOS

There’s a utility that can help you with shared folders and access.

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How to set a different return address in Mail for macOS

You can have multiple accounts set up in Mail, and select among return addresses.

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How to set up an external drive as a Time Machine destination for multiple Macs

Step-by-step directions on connecting Macs to a shared hard drive for backup.

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Why read/write permissions go awry with macOS File Sharing

Some macOS problems don't have an easy fix. This is one of them.

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How to fix a “can’t be moved” permissions problem on your Mac

What to do if you can’t save a file in macOS.

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How to get Remove Attachments back in Mail for macOS

If you can't access this feature, here are a few things to do that could fix it.

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How to selectively migrate files from Time Machine

You can selectively migrate files, but you still have to create a new account.

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How to fix Safari when popups block usage in iOS and macOS

Apple fixed a bug that allowed scammers to hijack your Safari screen in iOS, but a macOS flaw remains.