IMac stuck on white start-up screen

My 27" iMac is stuck on the white start-up screen. I've tried turning it off and on, pressing p, q, shift, command and nothing will work. It never gets passed the white screen and the start-up chime. After trying to unplug everything, pressing p, q, shift, command, the screen turned blue. Any ideas?

Please read and methodically follow the steps Apple recommends in Mac OS X: Gray screen appears during startup located at http://support.apple.com/kb/ts2570

Similar Messages

  • IMac stuck at white start up screen with revolving gray wheel. What to do?

    My iMac is stuck at white start up screen.  I have been having problems
    With iMac since installing snow leopard.  The unplug/replug option
    Doesn't help. Any suggestions?

    Could be many things, we should start with this...
    "Try Disk Utility
    1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
    2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
    *Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
    3. Click the First Aid tab.
    4. Select your Mac OS X volume.
    5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
    http://docs.info.apple.com/article.html?artnum=106214
    Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
    (Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
    If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

  • Re: stuck at white start-up screen forever

    My Sony Satio/ U1 get stuck at the "sony ericsson" white start-up screen forever...
    I tried the PC companion UPDATE and "repair", both can't solved the problem.
    Any suggestions?
    Thanks

    You will have to take it to a Sony repair center 
    "I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

  • When I turn on my iMac the white start up screen appears but then it goes onto a black screen

    When I turn on my iMac, the white start up screen comes on with the noise. Then when it's supposed to show my accounts the screen goes black but I can still use the mouse?

    Startup in Safe Mode
    http://support.apple.com/kb/PH14204
    Reset SMC.     http://support.apple.com/kb/HT3964
        Choose the  appropriate method.

  • Intel Imac stuck at white screen and 3 beeps sound continously....

    Intel Imac stuck at white screen and 3 beeps sound continously when power on. Pls help......

    Well Barry, as for the Ram, all this while are install by apple technician since very day i bought iMac on july 2008. Just wondering What's actually went wrong..
    Very first day I bought iMac, few days later, system cant even on. AppleCare Centre exchanged a new set of iMac.
    two weeks later, i notice several dead pixels appearing on screen, call to log a case with them, later on, they changed a new panel.
    After several months pass, been using happily with iMac... but since now, this problem occurs. So fastrating... My third time encounters problem with iMac. sign
    Any suggestion? If not, I guess i have to bring this bulky iMac to applecare centre again. sign

  • White start up screen

    When I turned on my iMac, it won't load past the white start up screen with the spinning circle.

    Welcome to Apple Support Communities
    What OS X version have you got in this Mac?

  • How do I back up my MacBook Pro from an external hard drive if my macbook won't boot up from the white start up screen? HELP!

    I went to the Genius Bar a week ago, and the guy helping me there was nice enough to help me save some money by telling me I could replace the bad hard drive my MacBook Pro had by myself. I bought everything I needed (hard drive, screws, external hard drive) and my computer won't boot past the white start up screen. It doesn't even show the Apple sign at the start up screen. How do I back up my computer so I can save all my music, school files, etc.? Could really use someone's advice on what to do! Thanks!

    Ok, to be sure I understand what's going on. You were able to boot the Macbook from the existing "damaged" internal drive, and it has been backed up to the internal.
    If that is correct, your internal drive is working. Just to be sure, try booting with the R key down. Then run Disk Utility to repair the internal drive. That drive may in fact be useable.
    You should be aware that you cannot boot the MBP from a Time Machine back up.
    Please post back so I am sure I am understanding the situation.

  • In the boot up process my computer is stuck on the "Starting Windows" screen. What do I do?

    My computer is stuck on the "Starting Windows" screen.  I can't get it to boot up.  What do I do?

    try tapping f8 as it powers up and see if you can get into safe mode. When presented with this problem I usually boot the laptop from a technician's disk and run a preboot environment version of Windows, then do a chkdsk; /r on the primary hard drive. 60-70% of the time that fixes it.  You can also run the chkdsk: /r from safe mode if you can get there.

  • I restarted my macbook and now is stuck in the start up screen, what can I do?

    I restarted my macbook and now is stuck in the start up screen - grey screen, with apple logo and spinning wheel. It's a late 2008 model. Please help?!!

    Follow these directions:
    http://support.apple.com/kb/ts2570
    Ciao.

  • Yosemite Upgrade - iMac mid-2011 - Stuck on white progress bar screen at about 50%

    I have a mid 2011 iMac.  I started the upgrade to Yosemite about 4 hours ago.  For the last 3 and 1/2 hours it's been "stuck" at the white progress bar screen at about 50%.  I hear the harddrive occasionally do reading/writing, but it isn't doing a lot just a tiny bit.  I've seen others post across the net with similar situations, but no solutions.  I'm willing to wait, but would love to know if it's actually proceeding or simply in some infinite loop. 
    Anyone know how to tell if it's in a loop or proceeding?
    Anyone have any ideas on things to try?
    I really don't want to try and interrupt the upgrade, but it doesn't appear it's going to complete. 
    Ideas?
    Thanks for any help you all can provide.
    Perry

    This worked for my MBP 17" mid-2010 after 10 hours of minor panic watching progress bar stuck at 50%:
    Reboot and hold SHIFT key to go into Safe Mode and keep holding that SHIFT key.
    *Patience is the key to the Shift key*
    Keep the Shift key down.
    Do not let go of Shift key until you go to Italy when the computer does its Venetian blinds thing and goes into Safe Mode.
    Check whether you have any login items. Do this via via Sys Preferences > Users & Groups
    It is going to be slow. You are in SafeMode.
    Remove any login apps.
    Run any updates for Yosemite (e.g. Pages, Numbers, Keynote) within Safe Mode.
    Reboot. 
    Remember, YMMV

  • IMac stuck on white screen, no shortcuts work. What to do?

    Hello,
    my iMac is just a few moths old and it is now stuck on white screen. Trying to hold alt or command+whatever at startup doesnt work. cmd+option+r+p havent helped as well. It starts, makes sound and stucks on this white blank screen. I have Win 7 installed as well. I have also tried unmounting all peripherals.I  used it yesterday, booted in Win 7 and I installed new wireless logitech mouse. Than restarted, installed new Win updates, restarted again. Then I worked in Win 7 and finally I shut it down. And today it is just stuck. Please help. Thanks a lot.

    As I have written in my first post, trying to hold alt (option) key does not do anything

  • Yosemite my iMac stuck on white screen for 18 hours so far

    DDownloading Yosemite the software has, I believe, downloaded I have progressed but have now been stuck on white screen for 18 hours. I have my mouse arrow working but nothing to point at. Please how may I tell if anything happening?

    Start your computer with the original DVD that came with system and repair your disk with disk utility, also repair permissions.  http://support.apple.com/kb/TS1417

  • My imac is stuck on the start up screen

    Help! My other computer is stuck on the gray start up screen, with a spinning wheel. What should I do? I've already powered down and unplugged, to no avail.

    A little more detailed guide to fixing the gray screen at startup:
    http://macs.about.com/od/usingyourmac/qt/Mac-Stalls-On-Gray-Screen-At-Startup.ht m
    Tom

  • My screen goes blank after I see the white start up screen

    My screen goes blank after I see the white start up screen

    What kind of iMac do you have?  A PowerPC G3, G4, G5, or an Intel-based iMac?  What OS are you using?  OS 9, OS 10.2.x Jaguar, 10.3.x Panther, 10.4.x Tiger, 10.5.x Leopard, 10.6.x Snow Leopard, 10.7.x Lion, 10.8.x Mountain?
    This particular forum is for older PowerPC G3, G4, G5 iMacs running OS 10.5.8 or older.  If your iMac was made after 2006, then you have an Intel-based iMac.
    That being said, here are a few tips to try:
    Option 1
    Restart the computer while holding down the Option key.  This will tell the computer to look for bootable drives.  If it finds your normal startup disk, select let, then click the right pointing arrow to boot up the computer.  Now open up System Preferences> System> and select your normal Startup OS as the default startup disk.
    Option 2
    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.
    Option 3
    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 4
    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.
    When that is done, quit Disk Utility.  From the top Menu bar (I think its under Utilities) select the Start Up Manager, and choose your normal boot volume as the startup disk.  Restart the computer.  If successful, and you've rebooted from your normal startup disk, eject the install DVD/CD, and you're good to go.
    Good luck.

  • Macbook is stuck on the start up screen tried everything

    Put it in safe mode (black screen white writing) just stayed on tis screen after the white writing stopped
    Held down command option p and r keys, it retsrted but then just stayed on the start up screen as usual (white screen apple logo)
    Cant get on recovery mode

    Morning Catherine89,
    For more information on this, take a look at this article:
    Intel-Based Apple Portables: Troubleshooting a computer that will not power on
    http://support.apple.com/kb/TS1365
    Intel-based Macs: Resetting the System Management Controller (SMC)
    http://support.apple.com/kb/HT3964
    Hope this helps,
    Mario

Maybe you are looking for