My imac has a gray screen and spinning wheel and will not start up

my imac has a gray screen with a spinning wheel but will not start what does this mean?

Probably a damaged or failed HD. Please read Gray screen appears during startup on how to troubleshoot and what to do.

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    Please read Gray screen appears during startup.

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    After power failure last night, iMac has gray screen with spinning wheel when turned on, but does not go to login screen.

    Having the same problem myself. iMac locked up and I had to hold the power button to turn it off. Ended up with the apple logo screen and spinning wheel. I tried the disk repair and got the same message as yourself, in that it couldn't repair it.
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    Did the lastest Apple update and now my Mac has gray screen with spinning gear and a status bar goes to half then turns computer off....help?

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  • HT204347 Hi my serial number on bottom of my mac is W8*******66E when l try to try the computer on it is just going to grey screen with apple logo and spinning wheel i have tried starting in safe mode and a few other suggested solutions and they have not

    Hi my serial number on bottom of my mac is W8******66E when l try to turn the computer on it is just going to grey screen with apple logo and spinning wheel i have tried starting in safe mode and a few other suggested solutions and they have not worked?
    <Edited by Host>

    What other solutions have you tried?
    This may help you:
    https://discussions.apple.com/docs/DOC-3353
    Ciao.

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    Firefox has stopped working altogether (Windows 7). It will NOT start. The spinning start up graphic will spin for a moment, and quit. I have uninstalled everything that I could find to uninstall, and then re-installed, but to no avail. I have followed the currently posted suggestions with out success. Any other suggestions?

    '''[http://www.mozilla.org/en-US/firefox/all/ Download Firefox Full Installer For All languages And Systems]''' {web link}
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    '''Linux:''' Check your user manual.
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  • After removing system fonts and reinstalling fonts, FireFox will not start

    After removing system fonts and reinstalling fonts, FireFox will not start! When I start FireFox the "Mozilla Crash Reporter" opens as if FF just crashed??? I don't see any records in event viewer. I am using FF v3.6.3 on a Windows 7 box. I tried uninstalling 3.6.3 and installing 3.0.18 and had the same problem!
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  • MacBook pro will not boot. I get the gray screen, an apple icon and spinning wheel. Tried to start in safe mode but get the same screen. The only thing different was that I loaded the zedge sync app yesterday. Now getting this problem.

    Macbook pro will not boot. I get the gray screen, an apple icon and spinning wheel. I tried to start in safe mode, but get this same screen. The only thing different is that I added the zedge update app to do a sync for adding ringtones to my apple cell phone. How can I get a good boot. I am fairly new to apple computer.

    Reset PRAM: http://support.apple.com/kb/PH4405 and then try a normal boot.
    Run the Startup Manager to select Startup disk:  http://support.apple.com/kb/HT1310
    If those did not work your disk may be sick or dying.  The top priority at this point is to make a backup copy of your data.
    Check the health of the disk.  Boot in Recovery Mode (Boot, Command-R).  Run Disk Utility.  Click on the upper left disk icon.  Does the S.M.A.R.T. status say “Verified”?  If not the disk/SSD is unhealthy and needs to be replaced.  Even if it does not show “Verified” you can still attempt a backup. 
    Click on the icon indented below, usually called “Macintosh HD” and Verify Disk.  If it finishes with a green “OK” message then all is well with the disk.  If it shows errors in red then you have found a problem to address once the system is backed up.  Do not attempt software repairs until you have secured the data.
    If the disk will not show up at all in Disk Utility as your ran the tests above then it may be dead or it may have a bad internal SATA cable.  A trip to an Apple store for confirmation would be in order.
    If you have an external disk drive you can use as a backup drive then do so.  If not Google “Hitachi USB 3.0 external hard drive 1TB” to purchase one or go to a brick-and-mortar store (including an Apple store) to pickup one.  Any 1 TB external drive will do.
    Assuming it is still breathing you can try to recover the data without booting from the sick disk. 
    Reformat the external disk.  (This will erase all data on the external disk.)
    Boot in Recovery Mode.  Start Disk Utility.  Plug in the new disk.  Select it’s disk Icon (the second one down, left justified). Select the Partition tab.
    Partition Layout > Single Partition
    Name: Emergency Recovery 1 (or whatever name you wish to use)
    Format: Mac OS Extended (journaled)
    Options… > GUID Partition Table > OK
    Apply
    Select the Restore tab.
    Drag the old system volume (Macintosh HD) to Source.
    Drag the new disk volume (Emergency Recovery 1) to Destination.
    Click on Restore.
    It may take a long time for the backup.
    If that will not complete post back for other emergency data recovery methods, including those from a brody.
    If the backup succeeds, use the First Aid tab in Disk Utility to select the old volume (Macintosh HD) and Repair Disk.  If it does not finish with a green OK message try to repair it once or twice more.  If it repairs with a green OK message, will it boot normally?  If not, boot from the Recovery Partition and reinstall OS X.
    If it is still not healthy, post back for further instructions.

  • IMac, OS X 10.4, 9 beeps, EFI Firmware, will not start, failure, unsuccess.

    Hi,
    I have an Intel-based iMac, with OS X 10.4 (10.4.7 or 10.4.11 - i cannot check or remember). There was an option to do a EFI Firmware update. It said I would need to shutdown, and then hold the power button until a long tone. (I may have let go of the power button too early) Instead of one long tone, there were three beeps (dot dot dot dash dash dash dot dot dot, like morse code) and the computer will not start now.
    I do not have instillation CD's, etc but could probably burn them if I can download the ISO. However I would like to recover the system.
    Please help.
    Message was edited by: xmaskush
    Message was edited by: xmaskush

    Install disks become necessary if you need to either do some troubleshooting, some of which can only be run if you booted with the install CD, or you need to reinstall the system. So, I would try to get install disks from Apple.
    I found this article on the Apple support site:
    http://support.apple.com/kb/HT1557
    Here is an important paragraph from that article:
    Important: Do not unplug, shutdown, or restart your computer while the update is taking place. Interrupting a firmware update can render your computer unusable. If this happens, take your machine to an Apple store or authorized service provider or perform the recovery yourself using another Macintosh computer to download the Firmware Restoration CD disk image from http://www.apple.com/support/downloads/. This software allows you to create a CD which you can use to restore your machine to working order.
    Hope this helps.

  • IMac OS X Snow Leopard does not boot.  Turn on and it stays on gray screen with spinning wheel.  Shuts down after approx 1 minute.  How can I get in to troubleshoot?

    Need tips for troubleshooting

    Put the disk that came with the Mac in the DVD/CD drive and start up holding down Command+C and hopefully the Mac will boot, albeit very slowly.
    At the first screen choose your language (you are NOT going to re-install at this point) and from the menu bar select Utilities>Disk Utility. Once DU has launched select your Macintosh HD on the left and click on 'repair disk'. If it says it fixed anything click on 'repair disk' again until you get a clean pass. Restart as normal from the Apple menu.

  • My imac has a gray screen when waking it up from sleep mode. about 9 months ago, I installed OS X Maverick.

    This is the second time this has happened, since installing OS X (9 mos. ago). (I can't recall the fix from the last incident.) Upon waking the pc up from sleep mode, I get a gray screen. Nothing works except using the Command and P & R keys to get to "reinstalling OS X", to no avail. What do I need to do to get it back to normal?
    My imac is a 21.5", mid 2011 item.

    Those keys do not reinstall OS X. To do that:
    Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
    Boot to the Recovery HD:
    Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
    Repair
    When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
    Reinstall Mountain Lion or Mavericks
    OS X Mavericks- Reinstall OS X
    OS X Mountain Lion- Reinstall OS X
    OS X Lion- Reinstall Mac OS X
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