I shut down my computer and now it starts up, then shuts down again., I shut down my computer and now it starts up, then shuts down again.

I shut down my computer and now it won't restart. It starts, the apple logo appears, the wheel turns and then it's shuts down again. It has done that ever since.
My CD-Rom does not work so I can't reboot using the start up disk. Does anyone know what I can do to make it restart again ?????

Try resetting the SMC (http://support.apple.com/kb/ht3964).

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Computer shuts down and starts up by itself. I have 27" mid-2011 model. Has been like this for 2 years now. The hard drive and the mother board has been replaced already. No help, the problem still returns.

This morning it started again.
When I write the word "shut" to console it says:
kernel[0] Previous shutdown cause: 0
locationd[55] locationd was started after an unclean shutdown
kernel[0] Previous shutdown cause: -128
locationd[55] locationd was started after an unclean shutdown
locationd[54] locationd was started after an unclean shutdown
kernel[0] Previous shutdown cause: 3
Yosemite is installed. But the problem has happened with every operating systems.
Disk utility can't find any problems.
No usb or other devices are connected.
I deleted the file: com.apple.PowerManagement.plist (someone suggested that it may help)
I think it's not the matter of heat, because the problem occurs right away when starting my comp.
With a safe mode it sometimes stays up for hours. So could it be a problem with applications, rather than hardware?
Help is highly appreciated!
Thank you!

Thank you, I did ran etrecheck.
Here's the result.
Now my computer did shuts down even in safe mode, sometimes in seconds.
So I have to keep this short.
Hardware Information: ℹ️
    iMac (27-inch, Mid 2011)
    iMac - model: iMac12,2
    1 2.7 GHz Intel Core i5 CPU: 4-core
    4 GB RAM Upgradeable
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 0/DIMM1
            Empty
        BANK 1/DIMM1
            Empty
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
    AMD Radeon HD 6770M - VRAM: 512 MB
        iMac 2560 x 1440
System Software: ℹ️
    OS X 10.10.1 (14B25) - Time since boot: 0:2:47
Disk Information: ℹ️
    ST2000DM001-1CH164 disk0 : (2 TB)
        EFI (disk0s1) <not mounted> : 210 MB
        Macintosh HD (disk0s2) / : 2.00 TB (1.68 TB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
    OPTIARC DVD RW AD-5680H
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
    Apple Internal Memory Card Reader
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /Library/Extensions
    [not loaded]    com.wacom.kext.ftdi (1 - SDK 10.9)
        /System/Library/Extensions
    [not loaded]    com.wacom.kext.wacomtablet (6.3.10 - SDK 10.9)
Problem System Launch Daemons: ℹ️
    [failed]    com.apple.systemstatsd.plist
    [failed]    com.apple.ucupdate.plist
    [failed]    com.apple.watchdogd.plist
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist
    [not loaded]    com.adobe.AdobeCreativeCloud.plist
    [not loaded]    com.wacom.wacomtablet.plist
Launch Daemons: ℹ️
    [not loaded]    com.adobe.adobeupdatedaemon.plist
    [not loaded]    com.adobe.fpsaud.plist
    [not loaded]    com.microsoft.office.licensing.helper.plist
User Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist
    [not loaded]    com.adobe.ARM.[...].plist
    [not loaded]    com.spotify.webhelper.plist
User Login Items: ℹ️
    iTunesHelper    Ohjelma (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    Spotify    Ohjelma (/Applications/Spotify.app)
    SpyderUtility    Ohjelma (/Applications/Datacolor/Spyder4Pro/Support/SpyderUtility.app)
Internet Plug-ins: ℹ️
    AdobeAAMDetect: Version: AdobeAAMDetect 2.0.0.0 - SDK 10.7
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6
    QuickTime Plugin: Version: 7.7.3
    AdobePDFViewerNPAPI: Version: 11.0.10 - SDK 10.6
    AdobePDFViewer: Version: 11.0.10 - SDK 10.6
    Flash Player: Version: 16.0.0.305 - SDK 10.6
    Default Browser: Version: 600 - SDK 10.10
    SharePointBrowserPlugin: Version: 14.1.0
    Silverlight: Version: 5.1.30514.0 - SDK 10.6
    WacomTabletPlugin: Version: WacomTabletPlugin 2.1.0.6 - SDK 10.9
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
    WacomTablet [Click for support]
Time Machine: ℹ️
    Mobile backups: OFF
    Auto backup: NO - Auto backup turned off
    Volumes being backed up:
        Macintosh HD: Disk size: 2.00 TB Disk used: 316.51 GB
    Destinations:
        My Book [Local]
        Total size: 2.00 TB
        Total number of backups: 8
        Oldest backup: 2013-11-03 12:06:31 +0000
        Last backup: 2015-02-17 10:06:36 +0000
        Size of backup disk: Adequate
            Backup size 2.00 TB > (Disk used 316.51 GB X 3)
Top Processes by CPU: ℹ️
         2%    WindowServer
         0%    AppleSpell
         0%    ps
         0%    fontd
         0%    launchd
Top Processes by Memory: ℹ️
    94 MB    Finder
    86 MB    WindowServer
    73 MB    Spotlight
    69 MB    com.apple.internetaccounts
    64 MB    NotificationCenter
Virtual Memory Information: ℹ️
    589 MB    Free RAM
    1.91 GB    Active RAM
    1.34 GB    Inactive RAM
    451 MB    Wired RAM
    1.04 GB    Page-ins
    193 KB    Page-outs
Diagnostics Information: ℹ️
    Feb 27, 2015, 12:16:17 PM    /Library/Logs/DiagnosticReports/WacomTabletDriver_2015-02-27-121617_[redacted]. crash
    Feb 27, 2015, 12:08:32 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/fontd_2015-02-27-120832_[redac ted].crash
    Feb 26, 2015, 08:19:12 AM    /Library/Logs/DiagnosticReports/WacomTabletDriver_2015-02-26-081912_[redacted]. crash
    Feb 27, 2015, 12:46:20 PM    Self test - passed

I did an upgrade from 4.0 to the new 6.0 about 5 months ago. After the upgrade installed it said reboot system to apply upgrade. Now it wont open and keeps telling me that the older version needs to shut down the computer and upgrade the old version.

Look at original question. When I did the download to the new 6.0 it said everything was fine. Then when I tried to use the firefox again it said an older version needed to shut down my computer so that it could upgrade the old version. It wont let me do anything and all it says is shut down computer so old version can upgrade. It wont let me open the program or remove it or anything. PLease help me with this. I really like Firefox but this has been going on for 5 months now and I still dont get answers from you. How do I fix this???

Look at original question. When I did the download to the new 6.0 it said everything was fine. Then when I tried to use the firefox again it said an older version needed to shut down my computer so that it could upgrade the old version. It wont let me do anything and all it says is shut down computer so old version can upgrade. It wont let me open the program or remove it or anything. PLease help me with this. I really like Firefox but this has been going on for 5 months now and I still dont get answers from you. How do I fix this???

HT5361 I can't shut down my computer because it says mail is open. It says to close mail and continue shut down. Problem is I can't open or close mail now. Can't shut down my computer at all. What can I do?

I can't shut down my computer because it says mail is open. It says to close mail and continue shut down. Problem is I can't open or close mail now. Can't shut down my computer at all. What can I do?

If you cannot get mail to quit/force quit, you can always remove power from your Mac.
NOTE: removing power is a bad idea, and can result in data loss, but sometimes it is the only thing left to do.
Press and hold the power button for 5 to 10 seconds, and the Mac will power off.
When you power back on, the Mac should reboot.

I plugged my iphone in to my laptop to update it and the computer shut down right at the end. My phone now has the itunes symbol and an arrow asking me to plug my phone into itunes (I assume the laptop). It's frozen like that even when switched off

I plugged my iphone in to my laptop to update it and the computer shut down right at the end. My phone now has the itunes symbol and an arrow asking me to plug my phone into itunes (I assume the laptop). It's frozen like that even when switched off. If I plug the connection into the laptop it's not recognising it now. HELP!

Hello there, xkatiex255.
The following Knowledge Base article should provide the steps for you to resolve your issue:
iOS: Unable to update or restore
http://support.apple.com/kb/HT1808
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

Iphoto will not close or let me shut down computer. Now it's frozen and can't even view photos. Thanks.

I don't know how this started, but I'm unable to shut down my computer because I get message saying my photos are being synced with online... which they aren't. Now iphoto is frozen. Can't shut down computer or view photos.
Thanks for any help you can provide.
I have a MacBook Pro bought about 18 mos ago.

Force restart your computer, back up your iPhoto library, depress the option an command keys, launch iPhoto and rebuild the library
LN

My computer shut down and I had to erase everything. Now I only have my music from my CDs on my iPod. And no longer in iTunes as before. How do I save all the music on the computer? will new music from iTunes erase the old?

my computer shut down and with help from Appel it turned out that I had to erase everything . Now I only have my music from my CDs on my iPod. And no longer in iTunes as before. I do not have backup :-(
How do I save all the musicfrom the iPod on the computer?And if I buy new music from iTunes will it erase the music allready on the iPod ?
iTunes no longer recognise my iPod.
I hope someone can help!
Best Maria

See Recover your iTunes library from your iPod or iOS device.
tt2

I'm working on my iMac PowerMac8,2 PowerPC G5 (3.1) 2 GHz machine and have been having problems with the computer shutting down unpredictably. After the problem becoming impossible to work with, I shut the machine down. Now a little better, but reoccuring

I'm working with my iMac PPC G5, PowerMac8,2, 2 GHz machine running OS X 10.4.11, and was having a problem for a while with the machine shutting down unexpectedly. There was no clear pattern to when it was shutting down as far as I could tell. For a while, it would also not restart when buttoned on.
I set the machine aside for a while, probably a month or more, and then got it back out after its rustication. It started up and runs significantly better than it had been, but I have noticed it shutting down sometimes now again, though not as frequently as before. Sometimes it runs for a good long time between active work, sleep mode, and active work again. Once in a while it does shut down when no one is working on it (while asleep). But now it always restarts when buttoned on.
I've done the thorough vacuuming of any dust from the unit vents. I wonder if there's anything else I should try. In most other ways the machine works pretty well and has become the family desktop for basic uses, so I'd like to keep it running if I can. A little frustrating to not be able to upgrade all programs (iTunes) to useable versions, but that's another story....
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TCC

Option 1
Reset your PRAM. Press and hold down the Command Option P R keys while starting your computer. You will hear the startup chime. continue holding down those keys until you hear the startup chime a second time. Release the keys. If the computer restarts, you will need to reset your Date and Time. It might be time to replace your PRAM battery. The G5 iMacs require a 3 volt CR2032 lithium watch/camera battery like below:
http://eshop.macsales.com/item/NewerTech/CR2032/
You can find these batteries at Walmart, Kmart, Target, most local drugstore chains, for between $3-$5, or at Radio Shack for $12-$20.
If you have any G5 iMac model EXCEPT the iSight version, you can probably do the battery install yourself. Watch this video on upgrading your iMac's RAM to show you how to remove the back of your iMac, if you don't already know how:
http://eshop.macsales.com/installvideos/imac_g5_mem_m/
While you have the back off, use a can of compressed air to blow the dust out the vents at the bottom of the iMac, the fans, and anywhere else you can. Also inspect the 28-30 capacitors on the logic board. Look for dark spots, if they look puffy or swollen, or leaks.
Option 2
Reset the SMC by removing all cables (USB, Firewire, Ethernet, Modem, Power cord) from the back of your computer. Let it sit for one minute. Press and hold the power on button on the back of the iMac while plugging in the power cord. Release the power on button. Count to five, the press the power on button again.
Option 3
Place your original, came with the iMac when purchased install disk, into the slot on the iMac, press and hold the C key while pressing the power on button on the back of the computer. (If you have upgraded your OS from when you purchased your iMac, example your iMac came with OS 10.3 installed, and you're now using OS 10.5, then use the OS 10.5 Retail Install disk that you had used to upgrade your OS instead of the original, came with the iMac disk.)
Continue holding the C key until you see the OS starting to load. DO NOT do an OS installation. At the top Menu bar, select Utilities or Utility, and pull down to Disk Utility. On the left side of the window that opens,select your normal OS drive. Click First Aid at the top middle of the window if it isn't already selected. Click Repair Disk from the lower right area of the window. When that is done, click Repair Permissions to the left of the Repair Disk button you clicked earlier.
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Good luck.

I was an apple beta tester for iOS7 and now my iPhone 5 shut down, it's unresponsive it gets recognized by iTunes when plugged into the computer but that's it. Since I was a beta tester is there any way to fix my iPhone??

I was an apple beta tester for iOS7 and now my iPhone 5 shut down, it's unresponsive it gets recognized by iTunes when plugged into the computer but that's it. Since I was a beta tester is there any way to fix my iPhone??

Are you still running iOS 7 bet?. If so go to the private developer section for help. We cannot help you here with beta software.

Was updating itunes and backing up my iphone 4 at same time itunes shut down computer now i have lost everything guys i really need this stuff back is there any way to do this even if i have to send it away please help me!!

was updating itunes and backing up my iphone 4 at the same time then itunes said it need to shut down the computer sill me asumed the back up had finished (it hadn't) and now all i got is half of the pictures i had nothing else i really really need it all back is there any way to do this even if i have to send my phone away??? please i need help..
jak

can not believe it but did a system restor on windows vister and got it all back you can chose the date you want to restore you computer too and it worked sooooooo happy love it.

How can I log in to my computer? I changed language on keyboard and I shut down my computer.Now keyboard has no numbers, which I need for my pc password

Yesterday I was working on my computer and I changed English to Lithuanian language on the keyboard. I shut down my computer. Now when I want open it, I can't type correct password to access my account . There is left Lithuanian language on keybord, with has no numbers. And I need numbers to use for my password.

loretarem wrote:
There is left Lithuanian language on keybord, with has no numbers.
It does have numbers of course, they are made by first hitting the ` key (top most left most on a US keyboard) and then the usual number key. Have you tried that? Such combos often don't work in password fields, but you never know.

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I updated Adobe flash player and now i'm unable to open Opera and I have to use the power button to shut the computer down.
How do you delete programs?
thanks

If Flash Player is indeed the problem I would suggest using the Adobe Uninstaller.
Have you tried using a different browser such as Chrome, Firefox or Safari to see if they have a problem with Flash?

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I just downloaded Lion and now my computer just shuts down for no reason. What is its problem?

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My iPhone shut down and factory reset itself for no reason, and now when I plug it into my computer or any power source, the apple shines but it doesn't get any further than that. How can I fix it?

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Try Here > http://support.apple.com/kb/HT1808
You may need to try this More than Once...
Be sure to Follow ALL the Steps...
But... if the Device has been Modified... this will Not necessarily work.

I shut down my computer and now it starts up, then shuts down again., I shut down my computer and now it starts up, then shuts down again.

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