Hi. I recently discovered my iMac not shutting down and stalls. Everything seems to disappear except my wallpaper. If I Then go to setting on my Dock the apple sign at the top appears for me to shutdown the second time. I asked one technician's what might
Hi. I recently discovered my iMac not shutting down and stalls. Everything seems to disappear except my wallpaper. If I Then go to setting on my Dock the apple sign at the top appears for me to shutdown the second time. I asked one technician’s what might be the problem. He said that maybe it is Flash Player that runs in the background and avoid the computer to shutdown. I uninstalled Flash Player and the problem was fixed. Now I can’t watch any YouTube videos. Is there something else I can do to use Flash Player again to avoid the shutdown problem?
If YouTube is your only worry, you could instruct it to use HTML5 in stead of Flash:https://www.youtube.com/html5
Be advised though that Flash is used for other web stuff too.
Similar Messages
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Since installing OSX 10, my iMac randomly shuts down and restarts. I can not determine why this is happening. Any ideas?
1. This is a comment on what you should and should not do to protect yourself from malicious software ("malware") that circulates on the Internet. 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.
If you find this comment too long or too technical, read only sections 5, 6, and 10.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user, but internally Apple calls it "XProtect." The malware recognition database is automatically checked for updates once a day; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
3. Starting with OS X 10.7.5, there has been a second 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 necessarily been tested by Apple, 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. That may not mean much if the developer lives in a country with a weak legal system (see below.)
Gatekeeper doesn't depend on a database of known malware. It 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 get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
For the reasons given above, App Store products, and other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandboxing security is based on user input. Never click through any request for authorization without thinking.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. The built-in security features of OS X reduce the risk of malware attack, but they're not absolute protection. The first and best line of defense is always going to be your own intelligence. With the possible exception of Java exploits, 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. The threat therefore amounts to a battle of wits between you and the malware attacker. If you're smarter than he thinks you are, you'll win.
That means, in practice, that you always stay within a safe harbor of computing practices. How do you know what is safe?
Any website that prompts you to install a “codec,” “plug-in,” "player," "extractor," or “certificate” that comes from that same site, or an unknown one, is unsafe.
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 visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
Pirated copies or "cracks" of commercial software, no matter where they come from, are unsafe.
Software of any kind downloaded from a BitTorrent or from a Usenet binary newsgroup is unsafe.
Software that purports to help you do something that's illegal or that infringes copyright, such as saving streamed audio or video for reuse without permission, is unsafe. All YouTube "downloaders" are outside the safe harbor, though not all are necessarily harmful.
Software with a corporate brand, such as Adobe Flash Player, must be downloaded directly from the developer’s website. If it comes from any other source, it's unsafe. For instance, if a web page warns you that Flash is out of date, do not follow an offered link to an update. Go to the Adobe website to download it, if you need it at all.
Even signed applications, no matter what the source, should not be trusted if they do something unexpected, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
"FREE WI-FI !!!" networks in public places are unsafe unless you can verify that the network is not a trap (which you probably can't.) Even then, do not download any software or transmit any private information while connected to such a network, regardless of where it seems to come from or go to.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it — not JavaScript — in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.
Follow the above guidelines, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
7. Never install any commercial "anti-virus" or "Internet security" products for the Mac, as they all do more harm than good, if they do any good at all. Any database of known threats is always going to be out of date. Most of the danger is from unknown threats. If you need to be able to detect Windows malware in your files, use one of the free anti-virus products in the Mac App Store — 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 modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. Most of the real danger comes from highly targeted "zero-day" attacks that are not yet recognized.
By modifying the operating system, the software itself may create weaknesses that could be exploited by malware attackers.
8. An anti-malware product from the App Store, such as "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 will corrupt the Mail database. The messages should be deleted from within the Mail application.
An anti-virus app is not needed, and should not be relied upon, for protection against OS X malware. It's useful only for detecting Windows malware. Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else.
A Windows malware attachment in email is usually easy to recognize. The file name will often be targeted at people who aren't very bright; for example:
♥♥♥♥♥♥♥♥♥♥♥♥♥♥!!!!!!!H0TBABEZ4U!!!!!!!.AVI♥♥♥♥♥♥♥♥♥♥♥♥♥♥.exe
Anti-virus software may be able to tell you which particular trojan it is, but do you care? In practice, there's seldom a reason to use the software unless an institutional policy requires it.
The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have the disadvantages mentioned in section 7.
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 in the Sharing preference pane. All are disabled by default.
10. As a Mac user you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither should you assume that you will always be safe from exploitation, no matter what you do. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices. -
Why does my iMac not shut down when I try to shut it down?
Wh does my iMac not shut down, or restart when I try to do either. It just sits there with the little loading circle continuously moving. The only way I can shut it down is if I hold down the power button to shut it down. Can anyone tell me why this is?
Thanks!Open your Activity Monitor and check to see what is running?
If there is some important Process running, then it is better to wait until it has finished instead of cutting the power and corrupting who knows what?
If there is nothing important running, then follow the instructions in the link below for resetting the SMC.
Intel-based Macs: Resetting the System Management Controller (SMC) -
Trying to add our Epson 4800 after update 10.8.3 our iMac is shutting down and so is our Mac Book Pro. Any advise??
Thank you Linc. We just half solved our problem. The update 10.8.3 has a bug for using our printer with a special kodak proback firewire cable by don't giving a support. So we skipped the old way by downloading a new driver,
using an USB cable and adding our printer again and it works. The reactions of collegues and those on the Apple site showed us that the update 10.8.3 is having a major problem. -
I-PHONE 4 FROZE AFTER AN UPDATE, WILL NOT SHUT DOWN AND SENDS ALL CALLS TO VOICEMAIL, IS THERE ANYTHING I CAN DO?
Unplug it and let unit go dead. Then hold your Home button down and plug the USB power cord back in. iTunes should see it and then restore.
Basic troubleshooting steps
17" 2.2GHz i7 Quad-Core MacBook Pro 8G RAM 750G HD + OCZ Vertex 3 SSD Boot HD
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101
In Memory of Steve Jobs -
Ok, this is a problem I've been having for a little while now. So back when I had Mavericks, sometimes (and I do stress sometimes) when I tried to shut down my iMac via the apple drop down menu in the left hand corner, nothing would happen. It would act like it was going to shut down, the little pop up box stating it will shut down in 59 seconds with the little box to check if you want to re-open your windows came up and all. But if I click the shut down button on that box, nothing happens. Usually, if I had mail open, as it was trying to shut down the "Mail" icon at the top menu bar would highlight in blue and it would just stay. I could resolve this by simply opening safari and then shut it down while in safari. Then the screen would go gray and it would shut down with no problem. NOW no matter what I do, after clicking shut down on the little prompt box window that pops up after doing as I stated before, nothing happens at all. I can open apps, etc. but not the finder. I have tried every other way of getting it to shut down but it simply will not any other way then pressing the button. I have a late 2013 iMac with the i5 processor, etc. Now, I've seen threads from others about it taking very long and to try and clear "parallels" but in my daemon folder there is nothing and in my Launch folder there are only 3. None of which were mentioned in any of the threads I've seen. In fact, right now, as I type this, I tried shutting it down about 10 mins ago and here I am still using it. So it's not a slow shutdown. It's a not shutting down at all problem. I should mention that A: I did recently delete a user who when logged into their account, had a more frequent encounter with the first problem I mentioned. And B: after turning it off from the button on the back, waiting about 30 seconds and then turning it back on, If I restart it from the menu where it asks you if which user u want, it seems to shut down fine. Anyone else having this problem?
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
The title of the Console window should be All Messages. If it isn't, select
SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting. -
IMac Not Shutting Down at Times???
Hey guys, I had an issue with my iMac when i bought it a year ago where it wasn't shutting down and the top menu bar would disappear after you would click shutdown. Then I would click on Safari and the top menu bar would reappear and I could then click on the apple icon to shutdown again. It would work at that point. I took it into Apple and to make a long story short they said they fixed it but when I picked it up they ended up giving me a new computer due to a whole other issue.
So that was back around June. I was still having the same shutdown issue at times with the new machine but not as much. Seemed like it would happen mostly if I quit Safari and shutdown the computer immediately after. If I wait a few extra seconds to shut down after closing Safari it seemed to not give me that problem. Sometimes it still would though.
So now I download Yosemite and now when I shutdown the same thing will happen except when I get the menu bar back and click shutdown nothing happens (the shutdown window does not come up) and I have to hold the power button down in the back to shut it off. I have had to do this about 3 times in the past week.
I have a genius bar appointment tomorrow because I can't take it anymore and I do not want to keep putting it off.
Anybody else have this issue?Sometimes the system will present a dialog identifying the app that is preventing shutdown. Wait a sufficient amount of time (a few minutes is reasonable) before forcing it to shut down. The dialog may appear, or not.
You can examine system.log to determine the reason it's not shutting down. To do that use the Console app - it's in your Mac's Utilities folder. Time and date-stamped entries immediately following the shutdown request and prior to forcing it to shut down may reveal the cause. Copy and paste them in a reply to this message if you wish. Remove or obscure any information you may consider personal (such as your Mac's name). -
Why does my intel iMac not shut down properly?
On Shutdown, the screen goes black, appears to be shut down, but start button will not start unless you hold it in for several seconds. After machine boots messages says not shut down properly. Does this everytime. Has done it since it was new a year ago. the screen is black, but the button will not start the machine unless you hold it down, then you get the message. Have never seen anything like this. It is as if the machine thinks it is still running.
I'm not sure that a normal shutdown followed by turning off a power strip will reset the SMC. Power strips just switch off the "hot" leg of the power but do not interrupt the "cold" (neutral) leg or the "earth" (ground) connections. It may be that the SMC senses the cold-to-ground path or something like that to do a reset.
It may also be that the Mac hasn't actually shut down completely when you switch off the strip. You might try waiting a minute or two before doing that to see if it makes a difference, or listening carefully for any noises coming from the Mac after the menu shutdown before hitting the power strip switch.
I sometimes use an old veterinary stethoscope to listen for sounds coming from Macs for troubleshooting purposes (although never yet with a MacPro) & have noticed that the screen goes dark a little before everything else is fully shut down. -
Why will my Imac not shut down unless I force it off
I have 10.58 version and lately it is not shut down unless I force it by holding power off. How can I correct this.? Also, I get a continuous spin when I select share folder in my system preference so I can select share internet. I have Verizon mobile broadband.
We'd need to see them posted here to see if it was a problem, but if it isn't repeating in Console now as it's open, hen likely not a problem.
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for Shut Down problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
What happens? -
Macbook Pro will not shut down AND other issues...
Macbook Pro will not shut down. Not using the POWER button, not using control/alt/command/esc, not using force quit, and obviously not by selecting Sleep or Shut down from the Apple menu.
Force quit will not even pop up when selected.
Top row keys do not work either, have gone into settings and switched them to F keys and back again, no luck.
iPhoto will not import photos and will not shut down, gives me a message stating it is importing photos (nothing is connected to computer though). Baffling.
HELP! Computer is only a month old
Thank you everyone xxPlease make a Genius Appointment and take it in for service.
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My Imac wont shut down and other questions
Hello All
I was wondering i you could help me with a few question i have on my imac. (A OS convert after 29 years)
1) When I select log out or shutdown the machine just hangs at the blue screen with the wheel icon turning. In the end I have to shutdown manually.
2) I have 2 accounts, Mine and my my wifes. I have .mac and installed backup. how do i backup me and my wifes files as I do not have rights to her user area even though I am an administrator.
3) where do i find what my procare number is. Is this different from Applecare?
Thank you all for your helpWelcome to the Apple Discussions. Congrats on the new Mac.
I see that you have upgraded your OS as well as probably the Apple apps that came with your new Mac. An important step after updating/upgrading the Mac OS and Apple apps is to Repair Permissions on your startup drive. Go to Apps/Utilities/Disk Utility. Highlight your Startup drive in the lefthand list and in the First Aid pane press Repair Permissions. Repair Permissions until no more repairs are reported.
The SMC controls issues on your Mac like startup, shut down and sleeping. The SMC occasionally may need to be reset.
Intel-based iMac, Intel-based Mac mini: How to reset the System Management Controller
I believe that separate user accounts require separate .mac accounts. Two users can't sync to the same account without overwritting each other. Family accounts are available with a Master and sub accounts.
Lastly, here is a good website to learn about regular maintenance for your Mac, as well as troubleshooting issues;
The X Labs -
While on mac the screen went to line bars and now that is all that you can see. It will not shut down. Pulled battery ans left it out for 3 hours. put it back in and it is still on the line bars.
http://support.apple.com/kb/HT1808
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When I try to connect my Ipod to my Imac it shuts down and goes to reset.
I have an IPod classic and I recently used it to put my purchased music on a PC at work and now it won't sync when I connect it to my Mac. It displays the "do not disconnect screen," shuts down and then displays the reset screen and then loops the whole sequence again. When I disconnect it the menu screen comes back up and it plays like normal.
Start here: http://www.apple.com/support/ipodtouch/assistant/itunes/
It will likely lead you to this: iOS: Device not recognized in iTunes for Windows -
SBO is not shutting down and MenuEvent getting fired repeatedly
Hi,
I have written an addon which has a event filter for et_MENU_CLICK.
I am having problem when i close SBO. The application MenuEvent is getting fired repeatedly and SBO and my addon does not shut down.
I am using SBO 2004B and my addon is written in VB6.
Following is my Application AppEvent
If EventType = aet_ShutDown Then
End 'shut down
ElseIf EventType = aet_CompanyChanged Then
End
ElseIf EventType = aet_ServerTerminition Then
End 'shut down
End If
Please help.
Thanks
Satish.If you specify an event filter for only the menu event, the UI Api will not be able to respond to any of the other events you have written in code. Try adding the application events to your event filter or remove the event filtering all together.
In my experience the filtering can be a painful process especially in bigger projects.
Gopal -
HT4528 My iPhone 4s will not shut down and wont play sound on you tube
My iPhone 4s is experiencing two issues.
1. it will not shut down, restarts on its own after a few seconds,
2. and it loses sound on videos and apps intermittently - even when sound on apps comes back, there is no sound on any you tube videos
I have tried hard reset, software upgrade, and various setting changes I read about in a thread online for the sounds issue, nothing has worked.We tried the home sleep button several times with the same, that is, no result.
The thing with the WiFi apparently is not that uncommon a problem as the Apple web site mentionen the method I described to remedy the problem. Again, it did not fix the issue.
Thanks for the reply but ee still are at sea.
GrantZ
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