I Just purchased a used MacBook Air but it has no OS, how can I re-load the OS?

It depends on which operating system was on it when it was released. Older MBAs need disks or a special thumb drive to boot for OS recovery.
Let’s assume it is new enough that it has a recovery partition built in. You can try this and see if it works and if it doesn’t work then it is old enough to need he aforementioned recovery media.
It is simple. First you format the system disk and then you install OS X.
You will need to be in an area with a good wireless Internet signal.
Boot in Recovery Mode:
Power it on and when you hear the bong hold down the Command and R keys simultaneously.
Format the system disk:
> Disk Utility
> Select your system drive.
> Partition
> Partition Layout: 1 Partiton
> Options...
> GUID Partition Table
> OK
> Name: Macintosh HD
> Format: Mac OS Extended (journaled)
> Apply
> Disk Utility > Quit Disk Utility
Install OS X:
> Click on Install OS X and follow the instructions.

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I just purchase my first macbook air and i don't know how to download my microsoft office 2010 that i have already purchased for my old computer. Do i need to purchase again for the microsoft office for the mac?

I have a windows computer before i purchased my mac and i had already spend $500 for microsoft office professional 2010, i would ike to know if i can download the same one to my macbook air and how to do it. please need help!

The problem is that your Office 2010 package is a Windows application, and Windows softare doesn't run natively under MacOS. As a result, you can't simply download it or install it on your MacBook Air.
You can set up your MacBook Air to run Windows as well as MacOS, using either Boot Camp (where you pick whether to run Windows or MacOS each time the system starts, but you can't run both at the same time) or using a 'virtual' Windows installation (where you use software such as VMware to create a virtual Windows machine which you run as a window inside MacOS), but in either case you'll need a licence for Windows, plus the virtualisation software if you want to go that route. In other words, it's not simple, though in either case your Office software would be usable.
Some software houses are prepared to cross-licence software in this sort of instance - they'll allow a copy for one platform to lapse and charge a relatively low amount for new copy, on the basis that the user has already paid full price, but Microsoft generally don't seem generally cooperative in that instance.

My MacBook air's screen has gone black, how can I fix or reset it?

MY macbook airs screen has gone black and won't come back on. The keyboard still lights up. When I turn it off and back on it makes the start up sound, but not a thing comes up on the screen. No idea what else to do. Please help.

Try the fn key (bottom right) and the F2 key (top left) together and step up the brightness.

We have an older IMac (preIcloud) and just purchased a new Macbook Air. Our Iphones are set-up to synch with the IMAC and my calendars on the IMac & the phone look the same. But when I open ICal on the MacBook Air my calendar is missing items? Help..

We have an older IMac (preIcloud) and just purchased a new Macbook Air. Our Iphones are set-up to synch with the IMAC and my calendars on the IMac & the phone look the same. But when I open ICal on the MacBook Air my calendar is missing items? Help.

Are you wanting to import iCal to the MacBook Air. Since iCloud doesn't work with 10.6 OSX you probably don't have any data in iCloud yet?

HT1338 I just purchased a used MacBook that is running Mac os X 10.6.8. Many of the things I try to download need newer software, but I can't get it to download. Is there anything I can do?

I just purchase a used MacBook. It is running os 10.6.8. Is there anyway I can upgrade to Lion?

You can upgrade to ML directly from SL. Why do you want Lion? ML=$19.99, Lion=$29.99 (or something like that if I'm not mistaken) but that was when Lion was on the Mac App Store (MAS). Unless you had purchased Lion previously, you won't find it on the MAS. Now, Lion may be available only at  Retail Stores on USB (which would probably be more than $30) or you might have to talk to someone at their online store (some of the posters in the forum have said they were able to order it at the online store-not sure if they got it though)
http://www.apple.com/osx/how-to-upgrade/
Message was edited by: Ravindra Holalkere

I have just purchased a used MacBook Pro. Should I use a virus protection program on this computer? I can get Norton for free through my cable provider. Thanks, funkro

I have just purchased a used MacBook Pro. Should I use a virus protection program on this computer? I can get Norton for free through my cable provider. Thanks, funkro

See my Mac Malware Guide.
This issue is more complex than some of the responses you have gotten are indicating. You definitely should avoid Norton, but there actually IS malware out there, and all anti-virus software is NOT "snake oil." Don't listen to anyone who tells you otherwise, as they don't know what they're talking about.
Although you should be able to do without anti-virus software just fine, there are some perfectly good reasons to install it and some good anti-virus apps to use if you decide to do so. Further, even if you do avoid anti-virus software, you need to understand what the threats are so you don't end up thinking you're totally safe and do something you shouldn't.

I recently purchased my first MacBook Air but am unable to set up my @live.ie email account. My emails to this account come through to my iphone no problem. Can anyone help please?

I recently purchased my first MacBook Air but am unable to set up my @live.ie email account. My emails to this account come through to my iphone no problem. Can anyone help please?

Open Mac Mail.
From the menu bar click Mail > Preferencees then select the Accounts tab then the Account Information tab then click + to add the account.

HT201263 i have just purchased a used iphone 4 but i cant connect to itunes as it is already linked to an account. how do i remove the linked account

i have just purchased a used iphone 4 but am unable to activate as it is still linked to the previous owners i tunes account. how can i erase so i can strat using the phone

If this is what you're talking about: http://support.apple.com/kb/PH13695
Then you get the previous/original owner to unlock it or you get your money back ASAP.

I just purchased a new Macbook Air. How do I down load my entire music library from my iPhone on to my new computer?

I just purchased a new Macbook Air. How do I down load my entire iTunes music library from my iPhone on to my new Macbook Air?

Download past purchases
iTunes: How to move your music to a new computer
How to transfer data from a PC to a Mac

I am trying to download adobe reader for my macbook air but it keeps stopping at 44%. I have downloaded the latest updates for my mac and retried numerous times. Please advise. Thank you

I am trying to download adobe reader for my macbook air but it keeps stopping at 44%. I have downloaded the latest updates for my mac and retried numerous times. Please advise. Thank you

As posted about a dozen times every day, try the offline installer from http://get.adobe.com/reader/enterprise/

I am trying to open my macbook air but it has blocked and it makes a beep sound.

I am trying to open my macbook air but it has blocked and it makes a beep sound. It wont turn on. Is there something i can do?

Assuming this is not the normal startup chime, one beep means no RAM...so something in the path to the RAM has failed.
Best option is the Apple store genius bar to have the techs test the system and see what is going wrong.

What if i have a used macbook air and it has the password of the old person to logout?

what if i have a used macbook air and it has the password of the old person to logout?

You need to completely repartition the drive and install a suitable version of OS X that you own. What is the exact year and model of this MBA you have? Did it come with installer discs? If it's a 2010 or later model you can accomplish this using Internet Recover: About OS X Recovery.
Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.

I have just purchased a new ipad2 to replace my old ipad. How do i sync all the data in my apps I am worried about losing my data?

I have just purchased a new ipad2 to replace my old ipad. How do i sync all the data in my apps I am worried about losing my data?

iPad settings and data created and stored by a 3rd party party app along with app settings are included with the iPad's backup along with other data.
If you are syncing your iPad direct with iTunes on your computer via USB, the iPad's backup is updated as the first step during the iTunes sync process.
The first time you connect a new iPad or iOS device to iTunes that is used to sync with another iOS device, you are prompted to transfer the backup for the other iOS device to the new device. This is followed by a sync to transfer the same content from your computer that is on the old iPad to the new iPad such as music, movies, tv shows, 3rd party apps, photos, audio and print books, etc.

I have paid for ipages 09 on 15/05 but never succed to enter the serial code. After 45 days, altough I was charged by 20 chf, I cannot completely use all ipages tools(impossible to save ). How can I get again the serial code I paid for?

i have paid for ipages 09 on 15/05 but never succed to enter the serial code. After 45 days, altough I was charged by 20 chf, I cannot completely use all ipages tools(impossible to save ). How can I get again the serial code I paid for?

Getting the request for a serial number means that at some time you had the iWork ’09 trial installed. You need to delete the trial & then reinstall from the boxed DVD or the Mac App Store. The files to delete are the iWork ’09 folder from the main HD > Applications; the iWork ’09 folder in HD > Library > Application Support & the individual iWork application plist files found in HD > Users > (your account) > Library > Preferences for each user. The easiest way to fix the problem is to use Yvan Koenig's AppleScript that removes the files. You can find it on his box.com account in for_iWork'09 > other_iWork'09 items > uninstall iWork '09.zip. Download uninstall iWork '09.zip, decompress it, open it in AppleScript Editor and click the Run button.
Apple's support article on the subject says it's due to having a copy of the trial that is a higher version that the one you've purchased, but I'm not sure that is very common. This problem started with Snow Leopard & it seems to be some code in the iWork installers that doesn't do what it should.

My mac book air e-mail is trying to upgrade but it has frozen. How can I stop the upgrade as I cannot open my e-mail.

My mac book air e-mail is trying to upgrade but it has frozen. How can I stop the upgrade as I cannot open my e-mail?

This isn't the fault of firefox. Firefox is a web browser, not your email provider. I'd suggest contacting them (whoever you use, gmail, yahoo, etc.) and asking for help.

I Just purchased a used MacBook Air but it has no OS, how can I re-load the OS?

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