Apple Support
iTunes: About the "A secure network connection could not be established" alert
If you are unable to sign in or purchase content from the iTunes Store, you may see the following alert:
"iTunes could not connect to the iTunes Store. A secure network connection could not be established.
Make sure SSL 3.0 or TLS 1.0 is enabled in the Internet Options control panel, then try again."
MacBook Air (Late 2010): Installing Windows 7 drivers
Learn how to install Windows 7 drivers on your MacBook Air (11-inch, Late 2010) or MacBook Air (13-inch, Late 2010) computer.
Xsan: Compatibility of SAN clients with Xsan and StorNext controllers
Learn which versions of StorNext can be used in the same SAN with Xsan controllers, and which versions of Xsan can be used in the same SAN with StorNext controllers.
Printing to an AirPort Extreme / Express Base Station or Time Capsule from Windows XP
Learn about printing to an AirPort Extreme / Express Base Station or Time Capsule from Microsoft Windows XP.
Xsan 3: Invisible "__defragtmp" files are created after using snfsdefrag
When defragmenting a file with snfsdefrag, an invisible "__defragtmp" file may be created which cannot be deleted.
This issue may occur when the following are true:
The defragmented file's name contains precomposed Unicode characters, such as letters with diacritical marks (an accent, grave, or umlaut).
snfsdefrag is run by root.
snfsdefrag is run when the current working directory is on an Xsan volume, or snfsdefrag's recursive option (-r) is used.
About the security content of iTunes 11.0.3
Learn about the security content of iTunes 11.0.3.
Recovering a forgotten iTunes Store account name
You can easily recover your iTunes Store account name if you have forgotten it.
Wi-Fi: Guest network clients can communicate with each other, but cannot connect to the Internet
Computers and devices (Wi-Fi clients) that are connected to a Guest network may be able to communicate with each other, but cannot connect to the Internet.
This can happen if the AirPort base station providing the Guest network is configured to use a DNS server on the local network.
Some third-party devices may not see 5GHz AirPort base station Wi-Fi networks
Some third-party Wi-Fi devices may not see 5GHz Wi-Fi networks provided by AirPort base stations.
LED Cinema Display (27-inch): Intermittent loss of audio
You may notice that sound from an LED Cinema Display (27-inch) connected to a Mac intermittently becomes inaudible. In some circumstances, you may need to unplug the display and reconnect it or restart the Mac before the sound becomes audible again.
Desktop computers: Troubleshooting wireless keyboard and mouse issues in Mac OS X v10.5
Some desktop computers with wireless keyboards or mice are shipped with the devices pre-paired and the batteries pre-installed. As long as the wireless devices are powered on when the computer starts up, no additional steps should be necessary to make them work. If one or both of the wireless devices do not function as expected, use the information below to identify and resolve the issue.
Note: These instructions work with Mac OS X v10.5 Leopard. For troubleshooting wireless keyboard and mouse issues in Mac OS X v10.6 Snow Leopard, see Desktop computers: Troubleshooting wireless mouse and keyboard issues.
iTunes for Windows: Additional troubleshooting tips for burning issues
Learn some additional steps to troubleshoot burning issues.
Using iTunes for Windows, you can easily "burn" audio, data, and MP3 CDs with most major disc drives, including:
CD-R
CD-RW
DVD-R/RW
DVD+R/RW
Here are a few tips you can try to solve common issues burning discs with iTunes for Windows.
Download and install the latest version of iTunes.
See "Can't burn a CD in iTunes for Windows" for basic troubleshooting steps. If you continue to have difficulty, then continue with the additional troubleshooting steps below.
About Wake on Demand and Bonjour Sleep Proxy
When a Mac computer is in sleep mode, it can continue sharing services, such as iTunes and iPhoto library sharing, printer sharing, file sharing, and screen sharing.
Boot Camp: "We couldn't create a new partition or locate an existing one" alert during Windows 8 install
"We couldn't create a new partition or locate an existing one" alert appears during a Microsoft Windows 8 installation.
This can happen if any Thunderbolt or USB storage devices--other than the USB media that contains a Windows ISO installer--are connected to the computer during the install process.
iTunes Store: About Pre-orders
You can pre-order music and movies from the iTunes Store prior to their public release date. Pre-ordered items will download when they become available.
Printer and scanner software available for download
Learn about which printer and scanner models are supported, and what third-party vendor software is available for download using Software Update.
Mountain Lion: Printed Contacts list isn’t alphabetical; doesn’t include photos
If you print your contacts in list view from the Contacts app, the list may print in a random order. Contacts may print without attached photos after checking the option to print with an attached photo.
About the security content of Java for OS X 2013-003 and Mac OS X v10.6 Update 15
This document describes the security content of Java for OS X 2013-003 and Mac OS X v10.6 Update 15.
Apple Configurator: Redemption Codes Not Imported - The spreadsheet provided has redemption codes for "(null)."
When importing a Volume Purchase Plan (VPP) spreadsheet into Apple Configurator 1.2.1, you may see a message like the following:
"The spreadsheet provided has redemption codes for "(null)." Please provide a spreadsheet with codes for 'Numbers.'" (Where "Numbers" is the name of the application for which you are importing codes.)
iAd Producer 4: Settings for iTunes LP/Extras development
Learn more about iTunes settings for iAd Producer 4 when developing iTunes LP and iTunes Extras widget project types.