1, first in the MacBook Air close, press Command and R two keys do not let go, and then press the top right corner of the open key (remember that at this time still continue to press COMMAND + R key).
2, when entering this interface, you can release all the keys. There are 4 options: Restore from time Machine backup is from the image file that you used to back up to Machine, and Reinstall Mac OS X means reinstalling Mac OS X Lion, get Help Online is the online retrieval of the aid file to understand the reload steps and common problems, and the last disk Utility is to manage the hard disk, including: Split the magnetic field, the format of the disk area.
3, in the top right corner of the screen, you can connect Wi-Fi, we recommend that you must connect to ensure that the download and installation process all smooth.
4. Click "get Help online" to see all the data and steps of the recovery system.
5, the most interesting thing is that it is actually a full version of Safari, you can already surf the Web page here!
6. You can enter this interface if you click Restore from time Machine Backup. Remember to use the external hard disk used as a time Machine backup to connect to the MacBook Air, and then click "continue".
7, if you have connected to the hard disk, you should be able to see the past backup files on this page, as long as you select the click "continue" to restore the MacBook Air back to the time of the backup. This feature is not described here because time Machine is not used.
8. Some friends may want to split the MacBook Air SSD solid disk into two or even several disk areas, in fact, you can reload Mac OS X Lion before, click Disk Utility. You can see this screen when you enter, and you can click on the disk you want to split.
9, click the "partitions", and then pull the lower left side of the lower right corner of the white section of the position, you can adjust the use of the Macintosh HD part. After the completion of the right point at the end of the set, and then set up a new magnetic zone can be. Of course, after installing Mac OS X Lion, you can always do this in the "disk utility" in "utilities".
10, click "reinstall Mac OS x", and then pop up before the installation will be with Apple's server to obtain certification, remember this time must be connected to the Internet, and then click "continue" Continue.
11, then you will see a agreement, click "agree" and then click the top of the "agree" can be.
12, and then choose which disk area you want to install Mac OS X Lion to.
13, began to reload, and so on! This download step takes approximately 1 hours (in the case of Wi-Fi connection).
14, the completion of most of this, the system will start again, familiar with the Apple sign out again.
15. Start Installing Mac OS X (This step takes about 30 minutes or so).
16, after the completion of the system will restart again, and then about 10 seconds later, will officially enter the Mac OS X Lion, so reload complete! (The system will automatically eject the Wi-Fi connection prompt, very considerate!)