How to update MacBook hard disk or SSD. If your MacBook (Pro, Air or other) has an upgradable hard disk or SSD, as per our list above, the following should work for you.

1. OS X Yosemite: MacBook Air from late 2008 (or later); OS X Snow Leopard or later You can do the following to find out which operating system your MacBook Air is running: Select the Apple icon in the upper-left corner of the Mac home screen.
2. Mac OS X - Reinstalling Network Adapters This document details how to delete/reset network adapters in OS X. Note: You will need Administrative privileges on the computer to perform this action.

This document details how to delete/reset network adapters in OS X.

Note: You will need Administrative privileges on the computer to perform this action.

1. Open System Preferences from within the Apple menu.

2. Choose the Network option.

3. Highlight the network adapter that is causing difficulties and press the '-' sign in the bottom of the left hand column.

4. Click Apply in the bottom right hand corner of the page to apply these changes.

5. It is strongly recommended that you restart the computer to apply these changes.

6. After restarting the machine, open the Network panel by repeating Steps 1-2.

7. If the adapters which you previously removed have not appeared, you will need to press the '+' sign in the bottom of the left hand column.

8. Choose the interface of the adapter that you deleted prior to restarting your computer and click Create.

9. After clicking Apply, this adapter should be added and functional once again.

See Also:

Macbook Air Os Download