Knowledge base

Mac App Store: Automatic security updates

Posted in Apple Portable Computers

Turn off automatic security updates

If you would like to always manually download and install security updates, you can set System Preferences to do so.

In System Preferences, click the App Store icon, and deselect these options:

  • Automatically check for updates
  • Download newly available updates in the background
  • Install system data files and security updates


If you deselect these options, you also turn off automatic checks for all software updates. To check for software updates, open App Store on your Mac, then click Updates in the App Store toolbar.

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None of the keys on my keyboard work

Posted in Apple Portable Computers

Troubleshooting your Apple USB Keyboard Step-by-Step

If your keyboard keys still aren't working after trying the steps in USB Basic Troubleshooting, try these steps, in order, until you've come to a resolution.

  1. Unplug all devices from your computer, including your mouse and keyboard, as well as your printer, scanner, cameras, iPod, external hard drives, and hubs. (Warning: Some devices, like iPods, may require you to perform steps before it is safe to unplug them.) If you have a hub, don't forget to unplug it as well.
  2. Plug your keyboard and mouse back into your computer firmly and securely. Take special care to make sure that the connector is completely in the port. (USB plugs fit into ports one way only, and won't plug in if you try to plug them in upside-down.)
  3. If that still doesn't work, try plugging your keyboard in to the other USB ports. Be sure to try them all. Check to see if the keyboard's Caps Lock light turns on when you press it, and try typing in one of your applications, such as TextEdit.
  4. If your keyboard works in one of your USB ports but not all, your computer may need service to resolve an issue with its USB port or ports.
  5. If your keyboard doesn't work in any of your computer's USB ports, it appears that your keyboard isn't functioning properly and needs to be replaced. You can order this part online. Order a replacement keyboard.

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Connect your MacBook to Ethernet

Posted in Apple Portable Computers

You'll need to use two adapters to connect your MacBook (Retina, 12-inch, Early 2015) to Ethernet.

Connect your Ethernet cable to an Apple USB Ethernet Adapter or a third-party adapter. Then, connect the adapter to the USB port on any of the following USB-C adapters.

Connect this assembly to your MacBook in order to access Ethernet.

*The USB-C Digital AV Multiport Adapter and USB-C VGA Multiport Adapter are powered. These are recommended so that you can charge your computer while also connecting to Ethernet or other devices.

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About the security content of iOS 8.3

Posted in Apple Portable Computers

  • WebKit

    Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later

    Impact: Visiting a maliciously crafted website may lead to arbitrary code execution

    Description: Multiple memory corruption issues existed in WebKit. These issues were addressed through improved memory handling.


    CVE-2015-1068 : Apple

    CVE-2015-1069 : lokihardt@ASRT working with HP's Zero Day Initiative

    CVE-2015-1070 : Apple

    CVE-2015-1071 : Apple


    CVE-2015-1073 : Apple

    CVE-2015-1074 : Apple


    CVE-2015-1077 : Apple

    CVE-2015-1078 : Apple

    CVE-2015-1079 : Apple

    CVE-2015-1080 : Apple

    CVE-2015-1081 : Apple

    CVE-2015-1082 : Apple

    CVE-2015-1083 : Apple

    CVE-2015-1119 : Renata Hodovan of University of Szeged / Samsung Electronics

    CVE-2015-1120 : Apple

    CVE-2015-1121 : Apple

    CVE-2015-1122 : Apple

    CVE-2015-1123 : Randy Luecke and Anoop Menon of Google Inc.

    CVE-2015-1124 : Apple

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    Apple Certified Mac Technician (ACMT) 2015 Frequently Asked Questions

    Posted in Apple Portable Computers

    How is ACMT 2015 different from ACMT?

    ACMT 2015 qualifies a technician to repair all Mac products previously covered by ACMT plus all Mac products produced before December 31, 2014.  

    This includes iMac, Mac Pro, MacBook Pro Retina, and MacBook Air products that previously required a separate qualification exam:

    • MacBook Pro (Retina, Mid 2012), MacBook Pro (Retina, 15-inch, Early 2013, Late 2013, and Mid 2014)
    • MacBook Pro (Retina, 13-inch, Late 2012), MacBook Pro (Retina, 13-inch, Late 2012, Early 2013, Late 2013, Mid 2014)
    • iMac (Late 2012, Early 2013, Late 2013, Mid 2014, and Late 2014)
    • MacBook Air (Mid 2013 and Early 2014)
    • Mac Pro (Late 2013)

    All of these products are covered by the ACMT 2015 certification

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    Connect your iPhone, iPad, iPod touch, and Mac using Continuity

    Posted in Apple Portable Computers


    Use Handoff with Apple apps such as Mail, Safari, Maps, Messages, Reminders, Calendar, Contacts, Pages, Numbers, and Keynote. Start a document, email, or message on one device and pick up where you left off on another device. You can also use Handoff with some third-party apps.

    To use Handoff:

    • Sign in to the same iCloud account on all your devices.
    • Turn on Bluetooth on all the devices you want to use. Make sure your devices are near each other.
    • Connect all your devices to the same Wi-Fi network.

    Then, use one of the apps listed above on one of your devices.

    On your second iOS device, swipe up from the bottom-left edge of the Lock screen, where you see the app’s activity icon.

    You can also go to the multitasking display by double-clicking the Home button on your your iPhone, iPad, or iPod touch. Then tap the app.

    On your Mac, the Handoff app icon appears on the Dock. Or you can press Command-Tab to switch to an app with a Handoff icon.

    Turn off Handoff

    To turn off Handoff on your iPhone, iPad, or iPod touch, go to Settings > General > Handoff & Suggested Apps, and turn off Handoff.

    On your Mac, go to System Preferences > General and uncheck the Allow Handoff setting.

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