I have mac air late 2009 model identifier 2,1 running os 10.6. i want to know can i upgrede it 10.8?

i have mac air late 2009 model identifier 2,1 running os 10.6. i want to know can i upgrede it 10.8?

Upgrading is rather simple.
First you need to enure you have enough free hard disk space. The quickest way to do this is to click on Spotlight (the magnifying glass at the top right corner of your screen) then search for and open an app called Disk Utility. Once Disk utility opens you need to highlight the second item on the left which is called MacintoshHD by default. Then look on the lower right for available disc space is gigabytes. You need a minimum of 8gb available.
Got enough space? Great. Next click on the Apple menu on the top right corner and select "About this Mac" and make sure you are running 10.6.8. If not click software update and install it.
Once you verify you are on 10.6.8 then click on the Apple menu at the top right and select the third item on the list called the App Store. Mountain Lion is on the lower right of the first page that loads. After that you click on the $19.99 then enter you account to continue. I assume you already have an itunes store account so use that for payment. As soon as the charge goes through it starts to download. Its about 4gb so it can take anywhere from 20 minutes to several hours depending on your internet connection speed.
If its going to take a long time you may want to go to the Apple Menu at the top right and select system preferances then Energy Saver on the second line. Then move the slider on the first line all the way to the right so the Mac will not go to sleep during the download. Also be sure to plug in the power cord. Once you upgrade this setting will be retained so when you are done you will need to go back and change this setting, its the same in the newer version.
When its done downloading it will ask you to install. Its pretty simple, you need to enter your Administrator password and agree to the liscense and click next a few times. Be sure to select Macintosh HD and not Recovery HD to install to. I wouldn't imaging the installation taking more than 15 minutes after it is done downloading.
Also if you chose not to install when its done downloading you can do it later. All you have to do is search spotlight for "Install OSX Mountain Lion". The app is in the Applications folder. Also be sure to make a backup before upgrading. It should go through OK but there is always a chance it will not.
Good luck!

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