Erase mac book air content

How do you erase content of mac book air and bring it back to factory settings

http://support.apple.com/kb/HT4718
OS X Lion or OS X Mountain Lion includes a built in set of utilities in the Recovery System. Restart your Mac and hold down the Command key and the R key (Command-R), and keep holding them until the Apple icon appears, indicating that your Mac is starting up. After the Recovery System is finished starting up, you should see a desktop with a OS X menu bar and a "Mac OS X Utilities" application window. Note: If you see a login window or your own desktop and icons, it is possible that you didn't hold Command-R early enough. Restart and try again.
In order to reinstall OS X Lion or OS X Mountain Lion, you will need to be connected to an Ethernet or Wi-Fi network. The Wi-Fi menu item is in the upper-right corner of the screen. Click the icon to display all available Wi-Fi networks. Click your preferred network name and, if needed, enter a username and/or password.

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Mac book air keeps freezing on youtube?!

Its a new mac book air bought 1 week ago. 4gb ram 256 hdd. When I watch a video on youtube it loads then all of a sudden the white circle which shows the progress is at the beginning and the clip is still playing then shortly after the loading symbol appears and doesn't play anymore. Anybody know what the problem is?
Tried emptying history and all that other cookies and internet content. Tried the permission thingy.

Let me explain.
You can't ask a drive partition to "repair itself".
So, you have to be booted to a different drive, than the drive that is causing the problem.
In this case, your problem disk is your startup disk. The "startup disk" is the drive that you boot to every day. So in this case, we need to boot to a different disk. On your system, you have the main startup drive on one partiton, and the Recovery Disk on a separate partition. Both of these partitions physically reside on your computer's hard drive, or SSD, but appear to be two independent drives to the system.
You are going to boot to the Recovery Disk, or more accurately sometimes called, the "Recovery Partition". To do this, we use the "option boot". This means holding down the OPTION key, while booting. After a few moments, you will be presented by a display of avaialble boot disks. You choose the one marked "recovery". Once booted up, you will chose Disk Utility. This is an App that is built-in to the Recovery Partiton for the sole purpose of managing drives, disks, and partitions without having to be booted to the main startup disk.
From here, you can select the starup drive, usually called "Macintosh HD", by default. After you select the drive, you can perform actions on that drive. One button will "repair permissions", another will "verify disk", and still another with "repair disk". By running "repair disk", Disk utility will attempt to repair certain software errors on the drive that might be preventing a good read of critical files needed to boot to the startup drive.
As well, "Repair Permissions" can also fix certain problems that may make the system unusable, or difficult.
You can also exit Disk Utility to perform a reinstalltion of the operating system, or recovery from a Time Machine backup.
As a last ditch, you can use disk Utility to completely erase your startup disk, in preparation for reinstallation of the OS. (this is after ALL ELSE fails)

How can I remove iCloud from my Mac Book and iPad and Mac Book Air and then just reload back on the MB Air and iPad only?

How can I remove iCloud from my Mac Book and iPad and Mac Book Air and then just reload back on the MB Air and iPad only, which have a different user with a separate Apple ID?

You have quite muddied up the waters, I'm afraid. Assuming you now have a single GUID partition formatted Mac OS Extended, Journaled, you should try reinstalling Lion:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

How can I reset my Mac Book Air in to original/back to factory settings

hi .. I got my New Mac Book Air in US (Ralehi) 2 weaks back only. Actually in the box the apple has not provided any recory disc or restoring discs. plese any boady can guide me how to create my restore disc aor how to i can rest my mac book air bac to factory rests. without disc how can i rest my mb air to factory settings.

If it shipped with Lion, restart with the Option key held down, tab to the recovery partition, press Enter, and erase the drive from there. Install a new OS.
(62586)

I accidentally synced my mum's brand new iPad to my mac book air. A few days later I realised that my iTune library on my mac is completely gone. So is my iPhone 4s after I synced it with my mac. How do I get my old iTunes library back? Please help!

I accidentally synced my mum's brand new iPad to my mac book air. A few days later I realised that my iTune library on my mac is completely gone. So is my iPhone 4s after I synced it with my mac. How do I get my old iTunes library back? I tried using icloud on my iphone but it stated that I have never back up my phone before. So I guess my iCloud data is gone too? But I have back up my mac in my harddrive using time machine. So how do I get my old itune library back? Please help! Thanks!

1) ensure iTunes is authorized for your iTunes store account(s)
2) connect your device and right-click or control-click it in the iTunes Source list, then choose transfer purchases from the shortcut menu that appears.
3) sync the device
iTunes will wipe the iPhone but, since you transferred your purchases in the previous step, your content will be in your library and you can re-populate the iPhone with it.
above works for purchases from the iTunes store. for everything else, check out this post by Zevoneer.

How do I unlock file permissions on an external flash drive connected to a mac book air?

Hi there, I have just synced my I tunes library to I Tunes on my mac book air using a WD external flash drive (which I have always used as my storage drive for my entire library and was previously running on a Sony Vaio PC) and although I can now see and play all my files I can't download new content as I get an error message stating "there was a problem downloading.... you don't have priveleges to make changes" which from my research is because the flash drive I tunes folder permissions within it are locked to read only.
Which is where the problem lies as I can't see anyway to change this when clicking on the drives in my devices and going to the get info option, as although it shows the permission status - you can't edit that?
Note I know this is the issue as if I change the I tunes media folder location back to the defualt folder as the hard drive on the mac book I can then download new files no problem, however I dont want to store my content on the hard drive of my mac book air as my library is over 300gb and want to keep it all on the external (as I always did when running I tunes on my PC).
Any help will be apprecaited guys!
Thanks

If the drive is formatted as MS-DOS or exFAT, use the Disk Utility in the /Applications/Utilities/ folder to repair it.
If it's formatted as NTFS, either reformat it or install third-party software which enables the Mac to write to NTFS drives.
(86377)

How to restore a Mac Book Air to factory

How to restore a Mac Book Air to factory

Press Command, Option and R keys on boot, open Disk Utility, erase the disk and reinstall OS X. If the computer came with discs, use the USB SuperDrive or Remote Disc > http://support.apple.com/kb/HT5287

My mac book air has a virus which is creating a lot of issues...how do i get rid of it? is there a free software to detect it and remove it?

my mac book air has a virus which is creating a lot of issues...how do i get rid of it? is there a free software to detect it and remove it?

There is no need to download anything to solve this problem.
You may have installed one or more of the common types of ad-injection malware. Follow the instructions on this Apple Support page to remove it. It's been reported that some variants of the "VSearch" malware block access to the page. If that happens, start in safe mode by holding down the shift key at the startup chime, then try again.
Back up all data before making any changes.
One of the steps in the article is to remove malicious Safari extensions. Do the equivalent in the Chrome and Firefox browsers, if you use either of those. If Safari crashes on launch, skip that step and come back to it after you've done everything else.
If you don't find any of the files or extensions listed, or if removing them doesn't stop the ad injection, ask for further instructions.
Make sure you don't repeat the mistake that led you to install the malware. It may have come from an Internet cesspit such as "Softonic" or "CNET Download." Never visit either of those sites again. You might also have downloaded it from an ad in a page on some other site. The ad would probably have included a large green button labeled "Download" or "Download Now" in white letters. The button is designed to confuse people who intend to download something else on the same page. If you ever download a file that isn't obviously what you expected, delete it immediately.
Malware is also found on websites that traffic in pirated content such as video. If you, or anyone else who uses the computer, visit such sites and follow prompts to install software, you can expect more of the same, and worse, to follow. Never install any software that you downloaded from a bittorrent, or that was downloaded by someone else from an unknown source.
In the Security & Privacy pane of System Preferences, select the General tab. The radio button marked Anywhere should not be selected. If it is, click the lock icon to unlock the settings, then select one of the other buttons. After that, don't ignore a warning that you are about to run or install an application from an unknown developer.
Still in System Preferences, open the App Store or Software Update pane and check the box marked
Install system data files and security updates (OS X 10.10 or later)
or
Download updates automatically (OS X 10.9 or earlier)
if it's not already checked.

How can I read a document created under "pages" on a Mac book air on an other computer

How can I read a document created under "pages" on a Mac book air on an other computer or even send this document in a mail to anyone ?

Only Pages, Preview, Pages for iCloud beta, and Pages v2 or later on IOS 7 can open native Pages v5.2.2 (.pages) documents. Sending a Pages v5.2.2 document to someone without Pages v5.2.2 is futile.
If you are using Gmail or Dropbox, you will need to right-click on that Pages document, and then choose compress from the contextual menu. You can then attach filename.pages.zip, because it appears as a single document, and not a folder.
Pages v5.2.2 has a Share button on the Toolbar. Providing your document is already in iCloud storage, you can Send a Link to iCloud via the following:
The Share toolbar icon also allows you to Send a Copy to Email, Messages, and AirDrop. This will present you with the document export sheet, the same one you get if you chose to File > Export To menu item, as the alternative.
If you are sharing document content with an MS Office user, then the document you want to send them is either a Word .docx, or .doc. If they want just a read-only view of your content, send a PDF, for improved cross-platform exchange.

Mac book air , antivirus?

got a mac book air for the first time, before a PC. Does that need anivirus too??

1. This comment applies to malicious software ("malware") that's installed unwittingly by the victim of a network attack. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the victim's computer. That threat is in a different category, and there's no easy way to defend against it. If you have reason to suspect that you're the target of such an attack, you need expert help.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files. This feature is transparent to the user, but internally Apple calls it "XProtect." The recognition database is automatically updated once a day; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders. In most cases, there’s no benefit from any other automated protection against malware.
The following caveats apply to XProtect:
It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets (see below.)
It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
3. Starting with OS X 10.7.5, there has been another layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't actually been tested by Apple (unless it comes from the Mac App Store), but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. For most practical purposes, applications recognized by Gatekeeper as signed can be considered safe.
Gatekeeper has, however, the same limitations as XProtect, and in addition the following:
It can easily be disabled or overridden by the user.
A malware attacker could conceivably get control of a code-signing certificate under false pretenses (though there's no evidence this has happened yet.) The certificate would eventually be revoked, but probably not before some damage was done.
For more information about Gatekeeper, see this Apple Support article. 4. Considering all the above, the best defense against malware is your own intelligence. All known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "trojan horses," which can only have an effect if the victim is duped into running them. If you're smarter than the malware attacker thinks you are, you won't be duped. That means, primarily, that you never install software from an untrustworthy source. How do you know whether a source is trustworthy?
Any website that prompts you to install a “codec,” “plug-in,” or “certificate” that comes from that same site, or an unknown one, is untrustworthy.
A web operator who tells you that you have a “virus,” or that anything else is wrong with your computer, or that you have won a prize in a contest you never entered, is trying to commit a crime with you as the victim. (Some reputable websites did legitimately warn users who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
“Cracked” copies of commercial software downloaded from a bittorrent are likely to be infected.
Software with a corporate brand, such as Adobe Flash Player, must be downloaded directly from the developer’s website. No intermediary is acceptable.
5. Java on the network (not to be confused with JavaScript, to which it's not related) is a weak point in the security of any operating system. If a Java web plugin is not installed, don't install one unless you really need it. If it is installed, you should disable it (not JavaScript) in your web browsers. Few websites have Java content nowadays, so you won’t be missing much. This setting is mandatory in OS X 10.5.8 or earlier, because Java in those obsolete versions has known security flaws that make it unsafe to use on the Internet. The flaws will never be fixed. Regardless of version, experience has shown that Java can never be fully trusted, even if no vulnerabilities are publicly known at the moment.
Follow these guidelines, and you’ll be as safe from malware as you can reasonably be.
6. Never install any commercial "anti-virus" or "Internet security" products for the Mac, as they all do more harm than good. If you need to be able to detect Windows malware in your files, use the free software ClamXav — nothing else.
Why shouldn't you use commercial "anti-virus" products?
Their design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere.
In order to meet that nonexistent threat, the software duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability and poor performance.
By modifying the system, the software itself may create weaknesses that could be exploited by malware attackers.
7. ClamXav doesn't have these drawbacks. That doesn't mean it's entirely safe. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so can corrupt the Mail database. The messages should be deleted from within the Mail application.
ClamXav is not needed, and should not be relied upon, for protection against OS X malware. It's useful only for detecting Windows malware. If you don't need to do that, avoid it. Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else.
8. The greatest danger posed by anti-virus software, in my opinion, is its effect on human behavior. When people install such software, which does little or nothing to protect them from emerging threats, they get a false sense of security from it, and then they may do things that make them more vulnerable. Nothing can lessen the need for safe computing practices.
9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use.

Need to reinstall OS on new Mac Book air

I purchased a new mac book air and migration assistant overwrote the whole hard drive. I want to red o migration assistant and select only some applications. How do i reinstall mavericks and all the applications to the original state? Computer came with no disks??

What you are trying to do is erase the storage and reinstall Mac OS X. To do that, restart the MBA and hold the Command and R keys. That will restart you on the recovery hard drive partition, what Apple now uses instead of an install DVD.
From the menu bar, select Utilities, then Disk Utility. Highlight the internal storage name in the left side bar, usually Macintosh HD, and then select Erase in the button bar top center of the main window pane.
After the storage is erased, Quit Disk Utility and from the Utilities on the menu bar select Install Mac OS X. That will download the Mavericks installer and reinstall the operating system. This will take some time as the installer is about 5.1 GB...you need a good internet connection because this is downloaded from Apple's servers. Also, be sure you are plugged into a wall outlet and not running on battery power. You do not want the machine to shutdown during this.
After you have reinstalled, you are at the out-of-the-box form of the MBA and will have to resetup all of your information from scratch.

I am new to mac air. Today i installed (unsuccessfully!) MAPLE16 on my mac book air. Now since it does not work properly (it also does not appear in applications) i decide to delete it. I could not remove it from launchpad . i need urgent help

i am new to mac air. Today i installed (unsuccessfully!) MAPLE16 on my mac book air. Now since it does not work properly (it also does not appear in applications) i decide to delete it. I could not remove it from launchpad . i need urgent help from your side.

Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.
Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.
I never install system modifications myself, and I don't know how to uninstall them. You'll have to do your own research to find that information.
Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmyrmac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button.
You generally have to reboot in order to complete an uninstallation.
If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.
You may be advised by others to try to remove complex system modifications by hunting for files by name, or by running "utilities" that purport to remove software. I don't give such advice. Those tactics often will not work and maymake the problem worse.

Smbdy stole my mac book air wt to do, plz plz plz help me

Smbdy stole my mac book air plz help me how to find

Have you enabled "Find My Mac" on the MacBook Air?
See this link: Reporting a lost or stolen Apple product
http://support.apple.com/kb/ht2526
Report the theft to your local authorities.
Check My Support Profile*. for the serial number.
If you have already configured the iCloud Find My iPhone service on your iPhone, iPad, iPod touch, or Mac you can use it to locate your missing device, display a message on its screen, make it play a sound at full volume (even if on mute), remotely lock it, or remotely wipe (erase) it to protect your privacy. Please see the following articles for more information:
iCloud: Find My iPhone overview
iCloud: Troubleshooting Find My iPhone, iPad, iPod touch, or Mac
For more details, what to do immediately, see Kappy's User Tip:
What To Do If Your iDevice or Computer Is Lost or Stolen
https://discussions.apple.com/docs/DOC-3362

HT1349 I want to buy a mac book air

I want to buy a mac book air, currently I have a mac book pro I bought applications for it. The question is ca I transfer to the mbair or do I have to buy them again? Even if I erase them from it?

You can transfer both your user profile and all assorted applications from your MacBook Pro to your new MacBook Air using the Migration Assistant. You can also make an appointment at the Genius Bar and have them do this for you. If you are buying your new Mac from an Apple Store just let them know and they can assist you as well.

Cleaning up mac book air for sale

Having upgraded to a new Mac Book Air, I'm preparing to sell my old one. There are various places that advertise selling used Macs. Some of them are advertised by Mac Life Magazine. I'm going to check out these places.
But next comes the question, how do I prepare it to turn over to the buyer? The only mass storage going with it is the SSD that is built in.
One approach that seems obvious to me is to wipe off all my files. By this I mean deleting everything under my Home directory and all the applications not part of OS X. Disk Util has a feature to erase free space. So if I delete the personal files and the applications I bought and then empty the trash, all the sectors which might contain the files in question should be in the free space. Disk Utils erase free space should do a good job of cleaning up the remnants.
Any comments or suggestions about this. Doing this instead of using a Secure Empty trash means that the remnants of files I deleted months ago are also cleaned out.
Now what else do I need to clean out?
How can I clean out securely things on my Keychain?
How do I get the system to forget my Apple ID? That is no one else's business. Obviously it needs a password but not letting them have the ID is one more step to being secure.
What else is on my system such as user related settings that are not stored in the home directory but in some system directory that I need to consider.
I guess I'm being a bit paranoid but there are people out there who do remarkable and scary data recovery stuff.
Thanks for your help.
Bruce

For some helpful tips:
This does not answer all questions you asked.
http://www.reedcorner.net/how-to-prepare-your-mac-for-sale/

Erase mac book air content

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