Don't-Miss Operating System Stories

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Apple Pay, AirDrop, and Handoff not working? Here’s what to do to get them to work again

Sometimes your phone is inches from your Mac, and yet neither sees the other.

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How to use Reader mode in Safari for macOS High Sierra

Want to visit websites without annoying ads, videos, and other distractions? Safari's Reader mode is the way to go.

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Slow Mac? Could be a hidden memory gobbler in macOS

Your Mac uses plug-ins that can eat up a lot of your systems's memory. Here's the fix.

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How to create a bootable macOS High Sierra installer drive

Put the macOS High Sierra on an external USB thumb drive or hard drive and use it to install the operating system on a Mac.

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How to create a bootable macOS Sierra installer drive

Instructions for making an external drive that you can use to install macOS Sierra.

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How to use Feedback Assistant to report bugs in the betas of macOS High Sierra and iOS 11

Using the public betas? Do your duty and report bugs to Apple.

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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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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.

Windows 10 Privacy in the Creators Update

Windows 10 Privacy in the Creators Update

Windows 10 privacy settings are easier to find and use in the Creators Update. But there's a difference between getting more control and getting more privacy.

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How to fix a persistent iCloud approval request on your iPhone

What to do when Apple keeps pestering you with a request for a security approval and there doesn't seem to be a way to grant it or deny it.

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How to create Spotlight searches to store as Smart Folders in macOS Sierra

Smart folders let you set detailed Spotlight search parameters and save them for reuse.

How to Clean-install Windows without Bloatware

You can get rid of bloatware or other troublesome software by doing a clean install of Windows 10. Here’s how it works.

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How to make sure Time Machine backs up external drives

A reader wants to shift his Photos and iTunes libraries to an external drive and ensure they're backed up by Time Machine.

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How to open a disk image’s Library folder

A reader wants to access the Library folder that’s stored on a mounted disk image.

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

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

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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.