Don't-Miss Operating System Stories

mission control mac icon

How to avoid a blank second display when using full-screen mode in an OS X app

A reader's El Capitan installation started blacking out one monitor when he's using apps full screen.

launchpad mac icon

How to sort Launchpad apps

A reader thinks he's overlooked a feature. In fact, the feature is missing!

apple keyboard diacritical remarks

How to active or restore missing press-and-hold diacritical marks in OS X

A reader has a grave complaint about an acute problem adding accents.

hard drive stock

How to set up a redundant backup system

Time Machine, cloning, or the tiger?

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How to use the Finder window toolbar to save time

Tweaking the Finder toolbar can help you become more productive.

yosemite trash can

How to delete items instantly or selectively from Trash

You can get rid of Finder items without an intermediate step.

osx server imac

A primer in Profile Manager: Set up Open Directory

The last major step before turning on Profile Manager is turning on Server's Open Directory service so that you can centrally manage network user accounts.

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How to fix typing two capitals in a row at a word’s start

A reader would like to have Word’s auto-correct feature work elsewhere when mistyping two uppercase letters in a row.

computer files stock laptop

Why can't file names be longer than 30 characters?

A reader is told his long filenames are unacceptable, despite OS X's support for them.

yosemite installer icon

How to restore your Mac to an older version of OS X

A reader wants to restore Yosemite, but can't access it during in OS X Recovery.

apple os x server icon mac screen

A primer in Profile Manager: The Server app

An introductory look at OS X Server and how it works.

time machine icon el cap

What to do when mobile Time Machine backups linger and fill storage space

An attempt by Time Machine to keep backups up to date away from network resources can fill your drive, too.

trash os x

How to replace El Capitan's missing Secure Empty Trash

A missing menu item (and another Disk Utility option) makes people wonder what's happening to their trash, anyway.

external hard drives stock

How to access a Mac drive from a Windows or Linux system

A reader wants to use OS X's HFS+ system on a PC with both Windows and Linux. What are his options?

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What to do when El Capitan sidebar's favorites disappear

Are you having heartbreak of missing favorites in El Capitan? A restart will help.