TS1440 Question Mark on MacBook Air

On my MacBook air, I cannot get the computer to start and get past a screen with a flashing question mark on it. I tried sticking in the USB for the OS X Lion but it won't work. Help!!

did you completley read the article that brought you here and try all the troubleshooting steps? If so and no luck, your ssd may have died.

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A lot of questions about my MacBook Air

I am really new to re-using Apple computers.The last time I used an Apple computer was back in 1987 when the school and my family had Apple IIGS computers. I have been using PC's which reqiure Microsoft. I a lot of have questions (10 questions) about my MacBook Air and I hope you good people can and will help me.
Product: MacBook Air
Operating System: Mac OS X Version 10.7.4
1) I Downloaded MacKeeper because I was fooled. I had a bad feeling just before I Downloaded it and I should have listened to my heart. However, I didn't buy it or fully Install it. It was like a test run and then they wanted me to pay almost $100 for it. Thankfully, I didn't because I read it is Malware. I spoke with an Apple Tech at Apple Care and he helped me get rid of it (or so we think). I don't see it anymore on my computer. I read it can slow down your computer. How can you tell if it's really off of the computer?
2) When I open "Finder" and I see that there are people Sharing my computer with me. I went into AirDrop and it reads, "Other people can see your Mac as (my name) MacBook Air when their computer is nearby." I bought a HotSpot and while it's turned on and I selected it as my WI-FI connection I thought it would get rid of these people, protect what I type, me, my items, computer, etc. But it didn't.
I didn't know that I have to buy a exteral CD and/or DVD Player in order to connect to the brand new Modem and Router in one by NetGear. I am so used to PCs and the CD/DVD Players being built inside.
The people at Apple Store told me that there is an internal modem inside, but I don't know how to find it and what to do then. Should I use a Firewall?, An AntiVirus, AntiMalware, AntiSpyware, etc. Apple Care tech told me I don't need to get an AntiVirus.
3) Is there a new kind of Wireless Modem and Router that doesn't require a CD-ROM?
4) When I travel or fly and I am not close to home I was told by Best Buy and Sprint that I had to buy a mobile HotSpot to use the computer (WI-FI) safely. As I typed, I have one. But it's pretty expensive and only gives me 1 hour and 15 minutes per day to Stream. What can I do to use this computer safely Online when I am out of range from a Modem and Router? What do people do when they travel on airplanes?
5) This compter won't let me use "Raid." I think you have to have a newer version. I hard about Raid on the radio from Leo (can't recall his last name) who's a Tech expert.
6) Should I buy a ZipDrive? Apple Store Tech told me that I didn't need a ZipDrive. I just remember the episode of HBO's "Sex and The City" when Carrie looses everything because her copy crashed. Now, of course, I know that's a fictional show, but with PC's and Microsoft I have lost everything when it crashed, frooze up, etc. I know there's iClouds. I heard about Carbonite, but I have read the Pros and Cons about it. Mostly they are Cons about it. I just don't want to do anything wrong and mess up this computer.
7) Should I buy a new Printer/Copier/Scanner because mine is an HP. It's not new, but it works. I even have a CD-ROM for Macs. What about the new product called, "Neat"?
8) Is there a special product that I should buy to do Online Banking and/or other important stuff?
9) I saw and read about iWork in the Apps Store and it sounds cool. I still have alot of friends and colleagues who still use Microsoft. Is iWork good to use? Should I Download it from the Apple Apps Store or can a buy it at Apple? Is there another Word Processing Program that is great and user friendly and will work with Macs and PCs?
10) Should I Update the OS with OS X Mountian Lion Pro from the Apple Apps Store or buy it at Apple Store?
In advance, I wish to thank you in this Apple Support Communites for your help. Have a safe and happy holiday weekend!

1) Here are instructions for removing MacKeeper. Since it mostly consists of manually looking for folders and specific files, if you follow the instructions you either fail to find what you are told to find (because your AppleCare guide gave you complete instructions which you followed) or you'll find some additional files that need to be replaced.
2 & 3) I assume you are looking at the sidebar of a Finder window and seeing Shared and computers under it. Those are computers that you can potentionally share. To do so you'd need an account on their computer and a password. They are not sharing your computer.
AirDrop allows you to create an adhoc network for filesharing and it only functions when you have selected the AirDop item in the SideBar. Actually doing that merely announces to computers in the same network node that your computer is available for a file to be sent to. Even then you have to explicitly allow the file to be downloaded to your computer. Similarly you'd be able to see other computers with AirDrop selected and be able to send them a file - which they'd have to accept.
The only reason your NetGear Router comes with a CD is to install and run their 'easy' step by step configuration program. It can also be done manually with a browser. Read the manual to find the IP address you must enter to access the router's configuration menu. Apple's WiFi routers don't require a CD to install the software because the configuration software is already on your computer.
I do have my firewall turned on. AntiVirus software isn't a bad idea - I use Sophos having tested it for a review for our local User Group and I found I liked it better than ClamAVx which is what I'd been using before. Both are free.
4) I think you were scammed by Sprint and BestBuy. I use hotel, coffee shop, and restaurant WiFi spots and have for years. However, because they can be unsecured, I do not shop online or bank when I'm using them. I also use 1Password and don't reuse passwords so even if a sniffer should grab an account and password that's all it would get - one account.
5) Raid doesn't really make sense with a MacBook Air - a RAID involves 2 or more disks being used as if they were one.
6) Zip drive? No. External hard drive - yes. It isn't a question of if a computer's hard drive will malfunction, it is when. OWC has a nice selection of external drives and the Mac has a built in backup system called TimeMachine. Due to the way TimeMachine works, I've found that your TimeMachine drive should be at least twice as large - and preferably 3-4 times as large as the data you are backing up.
7) if your printer works and it has Mountain Lion drivers, why replace it?
8) Online banking is done with a browser - Use Safari or FireFox
9) If trading files with Windows users is important Mac: Office is your best bet. If not, iWork, Mac:Office, or LibreOffice are all good possibilities.
10) you can only buy Mt Lion via the App Store.

HT3964 have a flashing question mark on macbook pro

have a flashing question mark on macbook pro, what do I do?

Try to boot with the command and R keys depressed.
If it boots start Disk Utility and repair the system partition.
Allan

IN DESPERATE NEED FOR HELP flashing question mark appears MacBook

Hello everyone, I got this White MacBook Mac OS X 10.4.11 yesturday I was updating limewire and iTunes, I was downloading some songs from Limewire when all of a sudden my macbook frozed. I was not able to do a thing. Not even minimizing nor quiting the app nor even opening another aplication, so I decided to shut it down by holding the power button until it shut down (about 8 secs). So I restart my macbook and I got this grey=blank screen whit a flashing question mark on it. I've tried EVERYTHING on this link http://support.apple.com/kb/TS1440?viewlocale=en_US even these one http://support.apple.com/kb/HT1533 and all I was able to accomplish, was to hold the mouse (/trackpad) button to eject a Cd, and while pressing Shift during startup (in order to start in Safe Boot mode) all I get is this lock image and this space to type a password. I've tried typing every password I know and I can't fix my macbook. Can anyone please help me out on this one?

It means certain system files needed for startup are corrupted. You will have to reinstall OS X. If your hard drive is unaffected you can try the following:
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger.) 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, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger) and/or TechTool Pro (4.5.2 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

How do I get past question mark on macbook (mid 2007)?

Hello, I am trying to fix a Macbook 13" (mid 2007) for a friend. I believe the hard drive (120gb 5400rpm) had failed because I could hear the read/write heads clicking. It was also displaying a flashing folder with a question mark. I installed a WD Black 320gb 7200rpm drive (I no longer hear a clicking noise) but the system still displays a flashing folder with a question mark - which is understandable since there's no operating system installed. My problem is that after following the instructions I've read on the internet to boot from the DVD (turn on power while pressing the C key), I still cannot get past the flashing folder with a question mark. My friend gave me an OS X install DVD (Version 10.6.3 Snow Leopard) that he said he thinks came with the macbook. I doubt that it did, considering the date on the DVD is 2010 and additinal research indicates the original operating system should have been 10.4.9 or 10.4.10. Anyway, I've tried to get the macbook to boot from the DVD and while I can hear it momentarily spin up a couple of times, it eventually ejects the DVD. I'm not sure if I'm following the correct steps, the version of OS X on the DVD given to me is not compatible with this macbook, or there is something else wrong. I'm willing to try a few more things to install OS X before accepting defeat and giving it back, so any information would be appreciated.

A flashing question mark or globe appears when you start your Mac
Question (?) Mark, Blinking Folder, or Gray Screen at Startup
These are related but not identical issues. Their causes are outlined in Intel-based Mac- Startup sequence and error codes, symbols. Solutions may be found in:
A flashing question mark appears when you start your Mac
Mac OS X- Gray screen appears during startup
In most cases the problems may be caused by one or more of these:
a. Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
b. Boot drive's directory has been corrupted - Repair with Disk Utility.
c. Critical system files are damaged or deleted - Reinstall OS X.
d. The disk drive is physically non-functional - Replace the hard drive.
Note that the information I have provided is what Apple recommends, If other users suggest different solutions than found here, then be sure what they recommend does not impact on your warranty, if any, or ability to get continuing Apple service.
Please don't start removing drives or changing cables unless you know what you are doing and have exhausted other non-invasive alternatives outlined here. If you perform any work yourself that is unapproved by Apple, then you will void any warranty you may have and lose all further Apple Support.
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
The main difference if you are using Lion or Mountain Lion is that you must first boot from the Recovery HD. Simply boot from the Recovery HD to perform the above.
Reinstall Snow Leopard Without Erasing The drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
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.

My MacBook won't boot past the grey screen showing a folder sign with question mark, My MacBook won't boot past the grey screen showing a folder sign with question mark, My MacBook won't boot past the grey screen showing a folder sign with question mark

Hi, I need some serious help immediately. I have been using an external hard disc to watch movies and stuff on my MacBook. However last night I removed the external hard disc accidentally without closing the programs that were still using the data from the hard disk and hence the complete MacBook got hanged and nothing responded. I tried using command Q to shut down the program buy it didn't help either. So finally I gave up and shut down the MacBook manually by pressing the power on/off button.
However when I tried restarting my MacBook I faced a serious problem. The start up won't boot beyond the grey screen showing a folder sign with a question mark sign in it .. I just don't know what to do. Somebody please help me and guide me through this problem
Awaiting quick response
Gratitude in advance
Regards
AJ

If you try booting your Mac holding down the Option key, you should see the icon for Macintosh HD. Try selecting that to boot. If you can get in that way, go to System Preferences > Startup Disk and select your Mac HD, then click Restart.
If you can't see the Mac HD, the volume may indeed need repair as Niel said.

Flashing folder and question mark on Macbook start up?

I was playing games on the Macbook when suddenly it froze. So I held down the power button and now on the start up; all there is, is a flashing folder with a question mark. I've tried going to Disk Utility and such, but all I see is "disk1." Please help! I'll try any option! I just don't want to take the Macbook in. I don't have the time and money for it.

From the sounds of it, your hard drive is dead. Whenever you get the folder with the question mark. it indicates that the computer cannot find an operating system. Your operating system is installed on your hard drive. For some reason, your machine cannot find the hard drive. Most hard drives last from 3 to 5 years before they fail. Put your OS X install disk in the drive and boot from it by holding down the "C" key while turning your computer on. You can then get to the disk utilities and see whatyou machine reports for drives. If your hard drive does not show up, that's a good inication your gard drive has gone south. If you are somewhat handy with computers, you can probably install a new hard drive yourself. If you have access to another computer go to ifixit.com where you can find all kinds of info and videos on repairing and updating your mac. I wish I had better news for you, but I'm afraid your hard drive has bit the dust. I went through the same situation with my 2007 black macbook I do hope you had all your files, etc. saved on a backup disk because it is very difficult and expensive to retrieve files from a dead hard drive. Good luck and let us know how you make out.

A few questions about the Macbook Air

Well I currently have a 2011 MacBook Pro which I love but it has definetely turned into my Desktop computer. I dont really ever even take it around my house but it is a major powerhouse.
Well even though the holdidays are 6 months away around that time I am either going to be in the market for either another iPad because I currently have the iPad 1 and will seel it or maybe a Macbook Air.
I mainly use my iPad for browsing the internet, going on forums, and checking email. The iPad gets really annoying if you are trying to type and mine is very slow.
Do you think that the Macbook Air would be over kill or would it fit perfectly. The only thing I cant justify about the Macbook Air is the price. I was thinking about going refurb but I dont know if that would be the smart thing to do.
Could anyone help me out with this issue.
Thanks

I think that this is such a personal preference issue, that any answers would simply be a "what would you do?" poll.
That you already have a MBP and an iPad, you already know the advantages and disavantages of both. The Air is going to be somthing that is, in a way, having some of the features of both. The Air, insasmuch as it is portable, somewhat like the iPad, but with OS X and a keyboard. You also don't like the cost of the Air.
I don't know that here is a reasonable answer, just for the reason that we don't know how much you get out of the iPad. Personally, I ditched my iPad after I got the 11" Air. I then more, or less gravitated to the 13" Air, and then ditched my MBP. For me, the 13" Air has then replaced them both.

QUESTION MARK ON MACBOOK PRO

HI
I am currently having issues in clearing the question mark. I have tried rebooting using the net but i can not locate the download disc space. And i have tried using the command button but nothing is working

Solution may be found if you search in the "More Like This" section over in the right column.
Which os version are you using?

Reoccurring Dirt Mark on MacBook Air Mouse Button

I have not had the paint come off yet, but I do have an odd spot on the mouse pad button that consistently attracts dirt and forms a black line of visible dirt I constantly have to rub off with the cleaning wipes I got from the Apple store. Visually the is no scratch that I can. When this happened before the finish eventually rubbed completely off and left an open patch to the bare aluminum on a Macbook Pro I had.
Took it to the Genius bar and it was just ho hum. No help there.

I use the Marware protection packs on all my laptops. (I just sold a still-working 2001 Titanium.)
See http://www.marware.com/MacBook-Air-Protection-Pack-Deluxe
There are others out there. Try a Google search.

TS1440 Question Mark in Flashing Folder at start up problem.

After trying to fix the flashing question mark folder problem, I took my iMac to the Apple store and, naturally and a little embarrassingly, the iMac booted up just fine and everything seem to be intact.However, when I brought it home it reverted but to same problem i.e. question mark in flashing folder. I read and tried most suggestions I could find but still cannot get the iMac to startup. I tried holding down the "C" key, then the Option key, then PRAMed it and even attached the separate back up disk I use as a Time Machine for my new iMac. IThe problem Mac is a 2008 iMac though I don't exactly know which OS came with it, in any case, I cannot find the original disk. The iMac is networked with my latest iMac. Can anyone help? Thank you.

Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214

Few small questions about locating Macbook air specification information

Hi
Sorry for silly questions but I'm a bit stuck after trying to find the answers myself...
1. I went to About this Mac > System Report > Hardware. I cannot find the RAM but does this fall under Memory?
2. I went to Finder, then Capacity is showing 121GB. Is the the correct location to check the size of the Hard Drive?
3. Where can I check if the hard drive is SSD or not or a SuperDrive?
4. I needed to find the Model Number which I couldn't find using 'System Report'. Can you please let me know for future reference where to Model Number on the actual machine? I did actually googled the serial number and found a website with the specification of the machine, but is this good practice and normal way of finding out this information?
Thank you in advance for your help.

1- Yes RAM falls under memory.
2- Right there, in the system report, look down in the list for Serial-ATA and you will see you hard drive specs.
3- Same as step 2, you will see something like "Model: APPLE SSD SM128C" depending on your drive's size.
4- Check this http://support.apple.com/kb/HT3255
Best regards

Macbook keeps freezing then cannot sits on question marked folder?

Hi Guys,
So I have had my MacBook Pro for awhile now its the late 2010 model. But im having a problem lately where the Mac will freeze, Requiring a restart then once the white screen pops up, a folder blinks with a question mark. I know that it is suggesting it cannot find the start up disk and yes I have double checked that its on the Mac HDD. But I reinstalled mac thinking it might fix it due to a software issue of some sort, but it just did it again.
Im just worried since it freezes whilst in mac??
Does anyone think this needs a new HDD??
Thanks

Hi Jarred,
It definitely sounds like a failing/failed HDD, especially with the freezing you're experiencing. From my experience (as a support technician for Apple products of 8+ years), more often than not this problem usually ends in the replacement of the HDD.
As you appear to have a MacBook Pro (and not a MacBook Air) you can try isolating the HDD by unplugging it and booting off the DVD media. If you have an external HD you can try installing a test copy of OS X onto a separate partition if you have that luxury.
Lastly, you posed this question in the MacBook Air sub-forum instead of the MacBook Pro. You may wish to relist the question in the appropriate forum to attract viewers that are more familiar with the MBP hardware versus the MBA.

Macbook air can't connect to wifi but at the same time is connnected.

Hey there fellow mac users, I got myself a tiny problem around here.
My mid 2013 mba is connecting to my wifi at home, but when it's done connecting (and shows it's connected at the network panel) it doesn't load anything from firefox, safari, steam, apps, twitter etc etc. The problem lies within my mba I think, because all our other devices, (windows laptops, android phones, windows pc's and our ipad) can connect to the wifi and actually use it.
Here's a few things I tried :
I tried turning it on and off (basic everyone does that)
resetting the router which I am connected to
creating a new wifi location
using different dhcp adresses (i set it to 8.8.8.8. to test it with google)
and as a final thing I heard one of my friends worked around with something on the hardware (a 1453 thing Idk what it does but it didn't fix it)
Is there someone with enough knowledge of internet connectivity on Macs willing to help?

It appears that you have a question about the MacBook Air.......and we handle support for the Apple AirPort Express, AirPort Extreme and Time Capsule on this forum......so you will likely get a much faster and more informed response if you ask your question about a MacBook Air in the MacBook Air support forum.
The link is just below:
MacBook Air
If you do have a question about one of the Apple routers, we can likely help on that.

MacBook Air with MiniDP as external monitor for 27" iMac

Hi,
I just found out, that the new iMacs can be used as external displays for MacBooks with MiniDP.
Now I'm considering to buy an 27" iMac, but I've one question:
As my MacBook Air is much slower than an iMac, I was wondering if I could get my MBA (or any ohter MB) in Target Display Mode, with the Command/F2 key combination?
I know about ScreenRecycler, but I want something that works right out of the box;)
As you can connect 2 iMacs together and use either one in Target Display Mode, I hope the same will be possible with an iMac and an MBA
Thank you

You can put the 27" in target display mode to act as a monitor for the MBair but the reverse is not true. You can't make the MBair a monitor for the iMac 27".
Regards,
Captfred

TS1440 Question Mark on MacBook Air

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