Why won't my computer shut down

My computer will not shut down. Most the times it says that it is because applications are failing to quit. Yes, I have tried to force quit multiple ways, such as Command+option+esc. I have also held down the mouse if on the dock, but the force quit option has not been present during those efforts. Applications that have been unresponsive so far: iTunes, The Sims 3, Safari, Word, Preview. I tried deleting applications, but failed because they need to be quit before that is possible. This also goes for installing updates. Thank you for your help.

hold option and right click the app you're trying to close and then you will see force quit. you can also force quit in Activity monitor

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Outlook won't let computer shut down

Hi, when I try to shut down my MacBook Air it says I need to close outlook first. There is a permanent outlook screen that says "Weclome to office for Mac 2011" asking me to enter product key, set up etc. I use all the other programs but have no need to use outlook and I don't have the boxes allowing me to close the screen. When I quit the application it doesn't go anywhere. My computer now won't shut down and as I need to install updates for unrelated software, I can't because the computer won't restart. Can anyone help?

Thank you so so much! How embarrassing it was that simple

Why won't my Mac shut down?

I've got a Quicksilver G4, 867MHz, 1.25GB RAM, Tiger 10.4.11 at home that just won't shut down. My wife and I share this computer; she has her log in, I have mine. The problem started over a month ago. At that time the G4 had a very difficult time starting - the gray screen, Apple logo and spinning wheel would stay on the screen for up to 4 minutes, then the computer would shut itself off. Three tries and it would finally start up. I ran utilities from the OS disk, ran Tech Tool Pro, ran Disk Warrior, ran Onyx; I did everything I could to clean up the system. It sort of worked - the machine would at least start (although slowly), run (slowly) and shut down normally (occasionally). I decided to reload the operating system along with all the updates. For the first few days after reloading the OS it started, ran and shut down normally. It now starts normally, runs OK, but will not shut down. When prompted to shut down everything on the desktop disappears except the wallpaper. The machine just sits with the wallpaper on the screen for as long as we let it go without forcing a shut down with the power key. What's the solution?
Thanks in advance to all who can help me.
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Hi-
Startup and login items that are corrupt or incompatible can cause both starting and shut down problems.
Troubleshoot following the steps in this article:
http://www.thexlab.com/faqs/startupitems.html

Why won't my G5 shut down after upgrading to OS 10.4?

Hey guys. I have a problem with upgrading my OS to 10.4.
I am running a Late 2004 Dual 2 GHz PowerPC G5 with two internal drives. About a month ago, I upgraded the OS to 10.4.3. It was great having spotlight, but the comptuer would refuse to shut itself down. Instead, it closes all the apps and windows, and gives me a spinning ball. After about 10 minutes, the hard-drives stop clicking, after which the fans kick on and stay on full blast until I manually unplug the comptuer. I have upgraded to 10.4.6, reset PRAM, reset SMU (PMU?), verified and repaired...
In thinking that this was a problem with the OS on the previous system, I installed 10.4.3 (my install disc) onto my second drive, which was happily running 10.3 (this was my backup). If running on this other drive, with 10.4.3, it also fails to shut down! I have done the same suite of resets and upgrades to 10.4.6, but it still doesn't shut down. Is there an incompatibility between my G5 and 10.4? Any advice about what I can do? Help!

Contributed by Fumiaki Kawashima a Level 4 here;
There are many reasons to become unable shutting down or restarting from Apple Menu. Some were explained by other posters.
Most importantly, loginwindow (the parent process is launchd.) close out the user session, continue to set the device permissions and user preferences to their defaults in a restart action, or the process power off the system in a shutdown action. However, the issue proves that somewhere in those routines cannot be performed.
Users authentication system seems to be intact because you can restart or shutdown from the login window. However, the admin account authenticated by the Tiger security systems could confuse somehow and affect loginwindow process for setting up the user environment. This may result in interfering with the process for the shutdown and restart mentioned above.
Test if you can shutdown from the keyboard-- Holding down controloptioncommand keys, and then press the eject key.
Check if the loginwindow plists are corrupted. To do this test, remove the followings to temporary folders on the desktop, and shutdown from the keyboard shortcut combination. Restart the computer to test the recurrence.
/Library/Preferences/com.apple.loginwindow.plist
/Users/HOME/Library/Preferences/com.apple.loginwindow.plist
Try disabling Login Items for third-party applications via the Accounts system preference, if any.
Verify whether any third-party kernel extensions (including device drivers) interfere with the loginwindow hooks process-- Start up with a Safe-mode, then test the Restart from Apple Menu to see whether it works. Also, boot into a Single-user mode, and test if "reboot" command is available from the BSD layer. The I/O Kit API for software developers provides a shutdown hook so that ".kext" troubleshooting may need to be considered. Besides, some bad programmed extension may not be unloaded automatically at a shutdown or restart.
If the computer is configured with Irish language Input method and/or third-party Irish keyboard, try disabling them to test.
A third-party application or custom script may interfere with the loginwindow hooks for the Shut Down or Restart. For example, if you install an application that prevents casually powering down a system, the Shut Down and Restart buttons may not work. Also, if you install a P2P file sharing application, try uninstalling it.
As last resorts, troubleshoot a bad RAM and consider "Erase and Install" solution.
OPTION:
Post a part of system.log that indicates events from "localhost kernel[0]: standard timeslicing quantum is 10000 us" to the next same line.
This may help to narrow down because restarting or shutting down the system process can initiate the procedure programmatically by sending an appropriate Apple event to Mac OS X Tiger's system process (loginwindow).
Likewise, check console.log whether any failures is reported.
Corrections:
Most importantly, the loginwindow (the parent process is launchd.) close out the user session, continue to set the device permissions and user preferences to their defaults in a restart action, or the process power off the system in a shutdown action.
However, the admin account authenticated by the Tiger security systems could confuse somehow and it may impact on the loginwindow process for setting up the user environment. This may result in interfering with the process for the shutdown and restart as mentioned above.
Addendum:
If you post a copy of system.log, consider to edit the Ethernet interface ID to a fake value.
API = Application Programming Interface
Cheers!
DALE

Why won't my MacBookPro shut down?

My 17" MBP works fine, but 2 nights ago it started to refuse to shut down, and it continues not to shut down and not to restart. It does, however, go to sleep.
I'm concerned, and would like to fix whatever is wrong without bringing it to a Mac store, if possible.
Any suggestions?
Thanks so much for your input!
Dennis

book2: My money is on the printer as the culprit. Make sure you have nothing queued up for printing when you shut down, and also make sure you have the latest Canon driver version for your printer.
There are still some USB devices and drivers that interfere with sleep, and perhaps with shutdown, by sending a very brief "Hello? Are you still there? I'm still here!" signal to the computer at regular intervals, in some extreme cases as often as once every second. A computer that is constantly plagued with such activity on the USB bus may never be able to carry out a Sleep or Shut Down command. Your printer or its driver software may be indulging in this kind of misbehavior, in which case it's no surprise that disconnecting it it before trying to shut down is an effective workaround. (Just turning the printer off might or might not do the same.) A newer driver version, if there is one, may remedy the problem, or it may not.

Why won't Firefox 33 shut down properly?

I must have just got an update to V33 because I was not seeing this problem before today. I have not myself been messing with the configuration in the last couple of weeks. (Not sure when the last time I actually closed Firefox successfully, but it was definitely within the last 3 days.) Looking at Submitted Crash Reports, I see just one on 10/3 and then 53 of them spanning the interval from 7PM to 8PM this evening, during which I had had to kill it from the Task Manager 3 times because it was just hanging when it was supposed to be shutting down. Here is a small sample:
af0c75a7-feaf-4ad3-aae2-81ddeedeaaaf 10/18/2014 8:00 PM
f0309bc5-4bc8-435f-9f33-aa2c6bb3a09d 10/18/2014 8:00 PM
02906c47-fc27-4559-b735-093215ac92b5 10/18/2014 8:00 PM
302fce44-9e80-440c-8f79-241b3a3d8328 10/18/2014 8:00 PM
Firefox seems to be working normally when I restart it.
I really do not want to have to do a reset to fix this. However, if I were to have to, would Sync put things back?
Is reverting to V32 an option? If so, how?
I'd appreciate any help.

Uhh. Never mind. After restarting Windows, it started shutting down normally again.

Firefox won't fully open, won't quit or force quit, and won't let computer shut down.

No screen, so I can't start in safe mode; won't quit; won't force quit; won't let me uninstall the app; won't allow the computer to restart because the app is supposedly "open"

Rebooting the computer should close everything.
Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift ''(Mac Options)'' >''' key, and then starting Firefox. Is the problem still there?
While you are in safe mode;
Type '''about:preferences#advanced'''<Enter> in the address bar.
Under '''Advanced,''' Select '''General.'''
Look for and turn off '''Use Hardware Acceleration'''.
Poke around safe web sites. Are there any problems?

Why won't my iPod shut down ??

hey !!
i have a problem with my nano, i dont know what's happening, but it wont turn off ! i keep pressing the "play" touch like i normally would to shut it off, but it just wont work !! can anyone tell me what to do ?

Finally did that. I didn't realize it took that long so I was just figuring there was a problem and you couldn't shut it down that way. New to Macs, but not to PCs
MacBook 2.0GHz 2 GB ram, Mini Core Duo 1GB ram, and 3 Windows machines Mac OS X (10.4.6)

Why won't my K9NGM shut down automatically?

Ever since I installed this mobo it has never turned itself off (as every other board does) I have to manually turn it off when presented with the windoze ok to turn it all off now message...
I've tried searching to find out why but never found anything so now I'm in 'The Land of the Knowledgable' can anyone enlighten me? Am I doing/not doing something stupid?

Quote from: DavidND on 11-April-08, 05:14:40
Fred - no i didn't. I haven't yet upgraded.
Boss - I tried that but am not given ACPI as a choice! where do I find it please? Sorry to be a pain!
"Boss - I tried that but am not given ACPI as a choice! where do I find it please? Sorry to be a pain!"
If its not listed you can't.. You should perform a new fresh installation, or force it by that way:
1. Changing HAL require changes in corespond kernels too. Each HAL use different kernels.
2. The HAL file along with corespond kernels need to match with exact XP version installed. Example:
If the user is using SP2(most popular and recent), we must use HAL & kernels version for SP2 too.(else will not gonna work)
So let's comment here again:
"expand d:\i386\halmacpi.dl_ c:\windows\system32"
If we use SP2, we need to use correct version of halmacpi.dll (in the string above its older version), we can get it from here:
expand d:\i386\sp2.cab -F:halmacpi.dll c:\windows\system32 /* I assume that we have XP SP2 installation disk */
or we can use other location, which will no need to have XP installation disk, XP is keep a copy of files locally, we can use this one instead too:
expand c:\windows\driver cache\i386\sp2.cab -F:halmacpi.dll c:\windows\system32
If we use SP3, we should use sp3 versions of halmacpi.dll,(and kernels which will be described below) e.g. in the string above we must replace sp2.cab with sp3.cab
OK, think that part should be clear, the next stage updating the kernels for our chosen HAL, ofc. we will follow the rule 1 they to match with our version used.
"ACPI Multiprocessor PC" is using those kernels: ntkrnlmp.exe, ntkrpamp.exe which must be renamed and overwritten to ===> ntoskrnl.exe, ntkrnlpa.exe in %systemroot%\system32 directory.
/* MS$ is using the same names for kernels, but in reality they are different for each HAL... */
So our complete scenario to successfully change(force "ACPI Multiprocessor PC") will look in that way:
expand c:\windows\driver cache\i386\sp2.cab -F:halmacpi.dll c:\windows\system32
expand c:\windows\driver cache\i386\sp2.cab -F:ntkrpamp.exe c:\windows\system32
expand c:\windows\driver cache\i386\sp2.cab -F:ntkrnlmp.exe c:\windows\system32
or better going to c:\windows\driver cache\i386\ folder 1st, to type lesser by:
cd c:\windows\driver cache\i386
and
expand sp2.cab -F:halmacpi.dll c:\windows\system32
expand sp2.cab -F:ntkrpamp.exe c:\windows\system32
expand sp2.cab -F:ntkrnlmp.exe c:\windows\system32
clearing the way for new HAL and kernels and making backup of current one in same time by:
ren ntkrnlpa.exe ntkrnlpa.old
ren ntoskrnl.exe ntoskrnl.old
ren hal.dll hal.old
then naming new HAL file with kernels to expected by OS with:
ren halmacpi.dll hal.dll
ren ntkrpamp.exe ntkrnlpa.exe
ren ntkrnlmp.exe ntoskrnl.exe
reboot PC by:
echo g=FFFF:0000|debug /* or just hit reset key...*/
In short to be more clear what we have changed:
To force "ACPI Multiprocessor PC", we need to overwrite:
extract & rename & replace(overwrite) Halmacpi.dll to ---> %systemroot%\system32\hal.dll
extract & rename & replace(overwrite) ntkrnlmp.exe to --> %systemroot%\system32\ntoskrnl.exe
extract & rename & replace(overwrite) ntkrpamp.exe to --> %systemroot%\system32\ntkrnlpa.exe
Just we must be sure that source files will match with actual XP OS version, etc:
If we use SP2, we must get source files(Halmacpi.dll, ntkrnlmp.exe, ntkrpamp.exe) from %windir%\driver cache\i386\sp2.cab,
If we use SP3 we must get source files from %windir%\driver cache\i386\sp3.cab,
If we use SP1 we must %windir%\driver cache\i386\driver.cab
If we use XP without SP we must get the source files from %windir%\driver cache\i386\ /* they exist there but compressed, which can be done by same way with expand command)
Then just to rename files and replace into %systemroot%\system32 folder as followed:
Halmacpi.dll to ---> %systemroot%\system32\hal.dll
ntkrnlmp.exe to --> %systemroot%\system32\ntoskrnl.exe
ntkrpamp.exe to --> %systemroot%\system32\ntkrnlpa.exe
We can use XP installation disk recovery console, we can use some DOS version which NTFS mounted which have write ability to NTFS, or just second OS installed to replace files from there.
Have used the procedure above xx times working every time without single issue
Else enter in BIOS and "LOAD BIOS OPTIMIZED DEFAULT", followed by "SAVE AND EXIT" then perform a new fresh OS installation

Hi to all, I use Windows 7, 64Bit and Lightroom 5.7, Camera Raw 8.7, when I develop or export files (mostly Raw Fils from Nikon D810) after 10 to 20 pictures my computer shuts down or I get a bluescreen. Please tell me why.

Hi to all, I use Windows 7, 64Bit and Lightroom 5.7, Camera Raw 8.7, when I develop or export files (mostly Raw Fils from Nikon D810) after 10 to 20 pictures my computer shuts down or I get a bluescreen. Please tell me why.

Blue screen/Computer shuts down is almost always a hardware malfunction or a driver problem.
Make sure your video driver is up to date.
If it is, then the next suspect, in my mind, is overheating, make sure all of the fans in your CPU case are working properly.

Why is my computer shutting down?

For the past two nights, my iMac has randomly completely shut down. I set it to sleep before going to bed. When I woke up, it was shut down. And the weird thing is that it was shut down, and when it started up, no applications or anything were open. Generally, I'll shut down and it keeps everything open and running, then when I turn it back on, everything is where it was. I don't know if I lost documents or anything... or everything. I've never seen this before since getting Lion.
I checked my energy saver schedule... I had it set to SLEEP at midnight. But it is never set to shut down or start up. And even if it was, why are all the apps closing when it shuts down?
Any help would be great. I don't want to lose things or destroy my hard drive with these weird hard shut downs.

I did the SMC thing. I zapped the PRAM. I still can't figure out why or when it's shutting down. I went to bed last night after midnight. I came down this morning at 8:30 a.m. and it was off.
Took forever to start up... all the windows came back (I found that that option had been unchecked... so I fixed that part of the problem), but the computer shouldn't be randomly shutting down.

Why does Computer shut down in middle of burning DVD?

Please help me! I am so frustrated. I have been using PE3 with no problems for over a year. This past week I downloaded the free trial version of PE4 and it kept crashing so I removed it. I made a project in PE3 and it's been crashing every time I try to burn to DVD. So I also removed and re-installed PE3 and re-created the project and once again it gets so far into the burning and then the computer shuts down. This never happened before and has only happened since I had PE4 on my machine, which I removed through add/remove programs. Any ideas as to why this is happening?

I have deleted Quicktime and checked to make sure my audio driver is up to date, it is. My video files are MPEGs and I do have some stills on the timeline but when I removed them it still crashed.
Steve - I have done everything except #1 and nothing works. I cannot burn to a folder.
Here's what's different and maybe the culprit(s). This is the first project since -
1. I downloaded the PE4 trial version. I have since removed it and re-installed PE3 with patch. (Vista still crash)
2. Best buy installed SP1 on my system - hmmm, could SP1 give me this issue?
Thanks.

I can't open my mail and every time i try to shut down my computer mail won't let me shut down. what do i do?

I can't open my mail and every time i try to shut down my computer mail won't let me shut down. what do i do?

Welcome to Apple Support Communities
Go to  > Force Quit or press Alt, Command and Esc keys, select Mail and force quit it. Finally, turn off your Mac.

My computer shut down in the middle of syncing in now my ipod is frozen. it won't turn on or off

my computer shut down in the middle of syncing and now my i pod is frozen. it won't turn on or off

See Here for,
Frozen or unresponsive iPod touch
Try this First...
Press and Hold the Sleep/Wake Button and the Home Button at the Same Time...
Wait for the Apple logo to Appear...
Usually takes about 15 - 20 Seconds... ( But can take Longer...)
Release the Buttons...
http://support.apple.com/kb/ht1430
If none of the above works, you may need to do this
http://support.apple.com/kb/HT1808

When viewing a video computer shuts down,says no sync ,why

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What version of flash player do you have installed? http://www.adobe.com/software/flash/about/
Please post the graphics section from about:support

Why won't my computer shut down

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