Mac won't restart after updating to OS X Mountain Lion

Mac won't restart after updating to OS X Mountain Lion. Please help?

Like what happens?  Is it just spinning?
If you've waited sufficiently long (say 10 minutes) you could just hit the power button which will do the trick.  A little more gentle would be to open a terminal window (if you can) and type 'sudo reboot' (without the quotes) and enter your password when it asks.  That will do it too.

Similar Messages

  • HT204347 My MacBook Pro won't restart  after update to lion

    My Mac book pro won't restart after updating to lion ! Said problem a cured at startup press any key ! No Goodrich

    Press and hold power button for up to 30 seconds. Remove battery and reinsert then repeat.

  • My MacBook Pro won't restart after updating iTunes, and so the update doesn't work. I have just purchased an iPad mini and can't sync it - can anyone help?

    My MacBook Pro won't restart after updating iTunes, and so the update doesn't work. I have just purchased an iPad mini and can't sync it - can anyone help

    Press and hold power button for up to 30 seconds. Remove battery and reinsert then repeat.

  • HT2506 After updating my system to Mountain Lion 10.8.2 I can no longer view videos on Facebook or other sites. The only one I can view videos on is youtube. I have downloaded Adobe Flash player and still no luck. I cannot even open Preview on my computer

    After updating my system to Mountain Lion 10.8.2 I can no longer view videos on Facebook or other sites. The only one I can view videos on is youtube. I have downloaded Adobe Flash player and still no luck. I cannot even open Preview on my computer anymore. Any ideas would be helpful thanks

    Merely clicking the Preview icon in the Dock doesn't cause it to open anything, unless you had one or more windows open the last time it quit.
    If you're sure you've installed the latest version of Flash, take each of the following steps that you haven't already tried. After each step, relaunch Safari and test.
    1. If you're getting a "blocked plug-in" error, triple-click the line below to select it:
    /Library/Internet Plug-Ins Right-click or control-click the highlighted text and select
    Services ▹ Open
    from the contextual menu. A folder should open. If there is more than one item in the folder with the words "Flash Player" (not "flashplayer") in the name, open the respective Info windows, check the version numbers, and delete all except the latest. You may be prompted for your login password. If you get the same error after doing that, re-download and reinstall Flash. Download it from this page:
    Adobe - Install Adobe Flash Player
    Never download a Flash update from anywhere else.
    2. If you get a "missing plug-in" error, select
    Safari ▹ Preferences... ▹ Security
    from the Safari menu bar and check the box marked Enable plug-ins.
    3. Select
    Safari ▹ Preferences... ▹ Extensions
    from the Safari menu bar. If any extensions are installed, disable them.
    4. In the Safari preference window, select
    Privacy ▹ Remove All Website Data
    Close the window. Then select
     ▹ System Preferences… ▹ Flash Player ▹ Advanced
    and click Delete All. Close the preference pane.

  • HT2476 After updating to OS X Mountain Lion, there is a password locked pdf document in the Downloads Stack. Does anyone know what password is required to access this file?

    After updating to OS X Mountain Lion, there is a password locked pdf document in the Downloads Stack. Does anyone know what password is required to access this file?

    Hello, if your install disk is locked (I assume with FileVault) there is no way to change the password. If it weren't locked there were at least two solutions. As far as I know, the only solutions now are:
    - contact your dad
    - erase and reinstall the OS X clean
    Let us know.

  • Problems to acces Internet after update to OS X Mountain Lion

    After updating to OS X Mountain Lion I can not acces any web that works with and user and a password. Normal acces to any open site. App store is also not working neither software actualization. Keeps trying to connect until time out message appears.
    Thanks in advance for your help

    If your friend purchased Mountain Lion, have them sign into the App Store using their Apple ID and download it again.
    You can make a bootable USB stick to install using this free program which will do all the work for you.
    Bootable USB Flash Drive – Diskmaker X

  • Mac won't boot after updating to OSX 10.6.4

    I am on my 3rd Mac that won't boot after updating to OSX 10.6.4. One MacBook Pro and two iMacs. I fixed one but the last two are getting the better of me. HD is not fried. Have tried every keyboard shortcut on startup, Disk Warrior via. Target Disk, repairing permissions in single user mode. The machines will not boot off of a CD or DVD and it will not boot up in safe mode. Something in the startup files is preventing startup. I am suspecting Sophos antivirus. I tried to uninstall it and trash it but I think it's still blocking something. Any help would be appreciated.

    Got it! Not sure if removing Sophos had anything to do with it but here's what I did.
    1) boot dead machine in Target Disk Mode (iMac)
    2) boot good machine off Snow Leopard disk (MacBook)
    3) install OS to dead machine- I found this next part very curious. When the install was complete the MacBook restarted as the iMac.
    4) ran software updates
    5) shut down MacBook then shut down iMac
    6) rebooted iMac- all was good
    I actually did this twice because a co-worker had the exact same problem on her MacBook Pro. Got both fixed today.
    Thanks everyone for your help!

  • Mac 10.5.8 won't restart after updates. just shows rainbow circle.

    I can't tell if the updates (e.g. Quicktime, etc) are not updating, or if it's just the computer that will not "restart" but I can't figure this out. 
    I've searched for a solution, but can't find one. Help?

    I don't want to hijack the thread with my problem
    But you are. You can avoid that by starting your own posting. The original poster has never responded, since Feb 18th, to anyone, so it is unlikely that he would respond to you.
    If a friend gave you the iMac with Lion on it, he most likely didn't give you his Apple ID and password either, because that is what you would need to do future updates. Your copy of Lion is most likely licensed to the previous owner, not you. He should have given you the Mac with it's original disks and the original OS X version installed.
    When you post your own issue, you can reward those that help you by awarding points. That won't work when you hijack someone else's thread, because only the original poster can award points. Thus you're removing an incentive for anyone wanting to answer your replies. Not to mention that it waters down the intent go the original issue as more and more variables are added to the thread.

  • Mac won't start after update to Yosemite

    After updating my MacBook Pro 13" to Mac OS X Yosemite, it became so slow (only went to the Apple Community after this problem and found other users experienced the same) so I restarted it. Because restarting, too, took a while, I shut it down by holding down the power button instead. Now, when I boot my Mac, it shows the Apple logo with the progress bar but it goes up to about one-fourth progress then shows an error/stop icon. Can't get through the login screen. How do I fix this?

    Solved by going back to 3.5.10. All settings and bookmarks came back. Won't be upgrading again anytime soon - or will be switching to Chrome!

  • Mac won't Start after Update

        Sure hope someone has an idea for this. Recentlly downloaded the latest update for Mountain lion 10.8.2 I believe, computer restarted, grey screen comes up and apple logo, on the bottom is a progress bar that loads, goes about 1/8 of the way, then disappears and the timing signal comes up and then screen goes to black and computer shuts off. I can not get past that. I was able to get into disk utilities and verify permissions and disk and repair disk but not repair disk permissions. Option doesn't come up. I don't know whats going. Right now it is doing a disk verify anbd said it needs to be prepared so it is doing that. Hope this works. Otherwise what are my options and any idea what has cause this.
    As Im typing this this is what happened. Tried repairing  then it came up saying that I should back up all my media and then reinstall everything. Very nice, thanks apple.

    Hello lyndafromcalgary,
    You mention a black screen after the startup chime.  Does that mean the screen is normal before the chime?
    I would still go through this article and try the things you haven't yet, like resetting the PRAM.
    Mac OS X: Gray screen appears during startup - Apple Support
    Take care,
    Nubz

  • My BB Z10 won't restart after update

    I did a software update on my BB Z10 today...it installed fine...but now it won't restart. Its stuck at the BB symbol and I've tried everything. Help??

    remove battery for 5 minnutes and then put back in
    Click here to Backup the data on your BlackBerry Device! It's important, and FREE!
    Click "Accept as Solution" if your problem is solved. To give thanks, click thumbs up
    Click to search the Knowledge Base at BTSC and click to Read The Fabulous Manuals
    BESAdmin's, please make a signature with your BES environment info.
    SIM Free BlackBerry Unlocking FAQ
    Follow me on Twitter @knottyrope
    Want to thank me? Buy my KnottyRope App here
    BES 12 and BES 5.0.4 with Exchange 2010 and SQL 2012 Hyper V

  • IPhoto update to 9.4.1 after updating MacBook Pro to Mountain Lion

    Hello.
    I updated my MacBook Pro to Mountain Lion and iPhoto to 9.4.1, but the Mac App Store still shows a "1 update available" notification, but when I open the App Store, next to iPhoto it says "Installed". How do I get rid of the "1 update available" notification ?
    Thanks for your help,
    Antonio

    Addendum to my post above (I'm past the window to edit my original post).  Here is a screen shot (cick image to enlarge/read) of the multiple iPhoto 9.4 updates installed yet the App Store still insists that my installed version needs updating.  I'm completely befuddled on this one.
    Message was edited by: Fox8

  • Unable to load youtube on macbook pro after updating software to os mountain lion

    I have updated to OS Mountain Lion and now unable to load YOUTUBE on Safari.

    You may need to reinstall the free Adobe Flash player.

  • Won't restart after updating Safari - coincidence?

    I have a 13" MacBook (not the new aluminum)... After installing the most recent Safari update, I okayed the restart. It didn't restart, and when I try to fire it up, nothing happens. Anyone else experiencing this? Any suggestions? Thanks for any help!

    Try resetting your SMC.
    Resetting the System Management Controller >>
    Dave M.
    MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
    Creator of 'Mac611 - Mobile Mac Support' (designed exclusively for an iPhone/iPod touch)

  • IMac won't restart after updating to 10.6.8

    I just installed the update of Mac os x from 10.6.7 to 10.6.8 and I clicked on install and restart in system updater and my computer usually goes to the blue screen for a split second before it shuts down and restarts, well it stayed for more than a split second. I installed it at around 5, it's now 12. It hasn't shut down yet and it's still stuck on the blue screen. It seems to be stuck on the booting down process. Any suggestions? I'm somewhat computer savvy but use layman's terms please.

    Hi,
    A couple of things to try...
    Firstly... use the Power Switch to turn it Off...
    Then do a SMC Reset... Instructions Here:
    http://support.apple.com/kb/ht3964
    If you are still not happy... Download and Install the Combo Update:
    http://support.apple.com/kb/DL1399
    And it probably wouldn't hurt to do a Permissions Repair (using Disc Utility) and a Restart
    Hope this Helps,
    Cheers,

Maybe you are looking for

  • Action with a condition that checks for a survey filled in a transaction

    Hi! I need to create an action with a condition that checks if there is a survey filled in the complaint document. Is there any way to do it? Thanks a lot! Susana Messias

  • Problem in sending messages using java mail api

    Hi All, I have a problem in sending messages via java mail api. MimeMessage message = new MimeMessage(session); String bodyContent = "ñSunJava"; message.setText (bodyContent,"utf-8");using the above code its not possible for me to send the attachment

  • In Boot Camp assistant no network connection

    My network works fine, but error message appears "Can't download Windows Support Software because of a network problem." I am trying to use Boot Camp to partition my MacBook into a Windows PC. Also download of Windows Support Software is very slow.

  • Webservice : priority

    Hi, is it possible to assign a priority to an Abap webservice ( comparable to the threading mechanism in java ? ) . thank you, Rolf.

  • Error with Desktop Manager synchronization - won't let me set up synch settings

    I have a new PC laptop and want to set it up to synch with my old Blackberry 8310 Curve just like it used to do with the old laptop. I downloaded the latest Desktop Manager software (version 6.0.0.40) and am trying to set up the synchronization setti