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OS X - Operating System General OS operation information and support

IMAC does not shut down


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Jeremy Lawrence

 
Member Since: Feb 28, 2012
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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
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chscag

 
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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
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Jeremy Lawrence

 
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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
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harryb2448

 
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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!
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Jeremy Lawrence

 
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There are lots of things running in Activity Monitor. Other than Finder, Safarai & Itunes etc
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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.
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Jeremy Lawrence

 
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Great. I'll give it a go, and let you know how I get on.

Thanks again
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Jeremy Lawrence

 
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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
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pjhbristol

 
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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
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Jeremy Lawrence

 
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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
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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
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pjhbristol

 
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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.
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harryb2448

 
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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!
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pjhbristol

 
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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 ?
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lando

 
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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?
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