Results 1 to 15 of 15
  1. #1


    Member Since
    Feb 28, 2012
    Posts
    6
    IMAC does not shut down
    Hi everybody. First of all, I hope that this is the correct place to post. If it isn't, I sincerely apologise. This is my first post, and I am a recent convert to MAC from Windows.

    My problem is a pretty simple one with I suspect a multitude of possible answers.

    I cannot shutdown my Mac. Basically, everything closes, and I have to look at a grey screen with a circular (black NOT rainbow) revolving circle.

    Now. When my Mac installs updates that need a reboot, there is never a problem. I suspect because the Mac uses a different shutdown procedure when installing an update.

    So I am convinced that something I have running, will not let me shut down properly.

    Genius eh? My question is, how do I find that hideous programme?

    Many Thanks in anticipation

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    49,067
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Welcome to the Mac Forums.

    How about helping us to help you by including the year, model, of your Mac and which version of OS X it's running? Then maybe we can try to figure out why the machine won't properly shut down.

    In the meantime, try resetting the System Management Controller. Take a look at this Apple KB article. LINK

  3. #3


    Member Since
    Feb 28, 2012
    Posts
    6
    Hi there thanks for your reply.
    I have tried resetting SMC previously, but that has not helped

    Mac OS X 10.7.3

    IMac Processor 3.4 GHz Intel Core 17

    Memory 8 GB 1333 MHz RAM

    Many Thanks again

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,239
    Specs:
    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    Have a look in Activity Monitor in Utilities when you try to shut down and see if anything is running there.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  5. #5


    Member Since
    Feb 28, 2012
    Posts
    6
    There are lots of things running in Activity Monitor. Other than Finder, Safarai & Itunes etc

  6. #6

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    49,067
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    The shutdown command should close all running applications but may not be able to terminate some ongoing processes. First try manually shutting down all your open applications to see if that helps. If that doesn't work, then there's likely something going on in the background preventing your iMac from properly shutting down.

    Also, if you have any external hard drives connected, try dismounting them first.

  7. #7


    Member Since
    Feb 28, 2012
    Posts
    6
    Great. I'll give it a go, and let you know how I get on.

    Thanks again

  8. #8


    Member Since
    Feb 28, 2012
    Posts
    6
    Well, I tried unmounting the one external hard drive I have, and on the next 2 shutdowns, it went perfectly. However today (twice), I had the same problem. But I appreciate your input. If anyone has any other ideas, I would be grateful.

    Thanks again

  9. #9


    Member Since
    Feb 28, 2012
    Posts
    12
    Specs:
    iMac 21.5" 2.5Ghz OS X LION 10.7.3
    Quote Originally Posted by Jeremy Lawrence View Post
    Well, I tried unmounting the one external hard drive I have, and on the next 2 shutdowns, it went perfectly. However today (twice), I had the same problem. But I appreciate your input. If anyone has any other ideas, I would be grateful.

    Thanks again
    I had exactly this problem and it was eventually traced (through Applecare) to the presence on Norton AV on my iMac. Files from that application present in the LaunchAgents & LaunchDaemons folders in the Mac HD Library were the root cause of the problem.
    Once I removed them from those folders (copying them to the desktop as an interim so they could be put back if necessary) the problem was resolved.
    If you don't have NAV it could be something else from an external application in those two folders causing a similar conflict at Shutdown. (I have since uninstalled NAV completely).
    This may be of some help. Good Luck

  10. #10


    Member Since
    Feb 28, 2012
    Posts
    6
    By jove pjhbristol. I do believe you've got it. I have uninstalled Kapersky anti virus, and the problem seems to have been solved. I am very grateful to you and everyone else who contributed. It's really appreciated

  11. #11

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    10,442
    Specs:
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    Glad you got that sorted out. Unfortunately you are not the first user to have problems with anti virus software affecting Mac performance.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  12. #12


    Member Since
    Feb 28, 2012
    Posts
    12
    Specs:
    iMac 21.5" 2.5Ghz OS X LION 10.7.3
    Quote Originally Posted by Jeremy Lawrence View Post
    By jove pjhbristol. I do believe you've got it. I have uninstalled Kapersky anti virus, and the problem seems to have been solved. I am very grateful to you and everyone else who contributed. It's really appreciated
    Hey Jeremy - really pleased for you if you've cracked it - I know how frustrating the problem is.
    I'm a relatively new Mac user and thought I was doing the right thing installing antivirus software - especially as it said on the packaging that it was specifically for MAC. I've since learned that its pretty much irrelevant anyway - the consensus appears to be that something like Rapport for protecting financial transactions should suffice.
    Anyway, if I have then I'm glad I helped you out.

  13. #13

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,239
    Specs:
    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    Wow fancy any Mac users being associated with Norton's. They made great products back in the OS 7, 8 and 9 days. Wish you had mentioned the fact earlier and we would have got it in seconds.

    There are no Mac OS X viruses, hence no Mac OS X Virus Definitions which you are paying not to download. If from the Windows environment and must have AV, download ClamXAV which is freeware. On your Windows partitions use Microsoft Security Essentials, also freeware.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  14. #14


    Member Since
    Feb 28, 2012
    Posts
    12
    Specs:
    iMac 21.5" 2.5Ghz OS X LION 10.7.3
    Quote Originally Posted by harryb2448 View Post
    Wow fancy any Mac users being associated with Norton's. They made great products back in the OS 7, 8 and 9 days. Wish you had mentioned the fact earlier and we would have got it in seconds.

    There are no Mac OS X viruses, hence no Mac OS X Virus Definitions which you are paying not to download. If from the Windows environment and must have AV, download ClamXAV which is freeware. On your Windows partitions use Microsoft Security Essentials, also freeware.
    "Wow fancy any Mac users being associated with Norton's".
    That is just the kind of patronising and unhelpful remark you sometimes get on forums.... Oh Well, so much for the MAC community
    Try to allow for the fact that some people might be new to the Mac environment, are used to having to protect their IT equipment and see products available from bona fide established software providers claiming to be packaged specifically for MAC .... or perhaps you haven't got sufficient imagination to do that ?

  15. #15


    Member Since
    May 13, 2012
    Posts
    1
    Uninstalled Kaspersky, rebooted immediately
    I uninstalled Kaspersky and was able to reboot without any problem.
    I then filed a bug report at Kaspersky. I like their products, but don't want
    to go through an install/uninstall/install cycle.

    Anyone know if they have a bug fix for this soon?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. iMac shut down issue
    By carbon13 in forum Apple Desktops
    Replies: 2
    Last Post: 06-18-2012, 01:15 AM
  2. Can't shut down iMac.
    By Carleen in forum Switcher Hangout
    Replies: 12
    Last Post: 11-14-2011, 02:52 AM
  3. Do I need to Shut Down my iMac??
    By TomServo in forum Switcher Hangout
    Replies: 10
    Last Post: 04-03-2011, 12:30 PM
  4. Imac i5 will shut off randomly
    By hotstarman in forum Apple Desktops
    Replies: 2
    Last Post: 03-13-2011, 07:51 AM
  5. imac shut down!
    By AJR08 in forum OS X - Operating System
    Replies: 0
    Last Post: 10-07-2008, 05:01 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •