Stuck at a blue screen on boot up

When i try to boot into osx it get stuck at a blue screen and the little loading icon will show for a few seconds then go away for a few second and repeats, help is much apreciated

How full is your HD? I had this same problem and the Genius Bar guy thought that the lack of space on the HD led to file corruption during virtual memory swapping. After deleting ~10 GB of files (backed up, of course), I re-installed the OS from the install disk and everything seems fine now.

Similar Messages

  • Stuck on dark blue screen on boot up Macbook Pro

    I was opening emails and my computer froze and a dark blue screen came up with no words. Then I tried rebutting in safe mode, while holding command r, and in recovery mode. Nothing will boot.  Every time the computer gets past the gray screen with the apple logo it goes back to the dark blue screen. I was able to use a lightning cable to get the data i need off the computer in target mode. Any ideas?

    How full is your HD? I had this same problem and the Genius Bar guy thought that the lack of space on the HD led to file corruption during virtual memory swapping. After deleting ~10 GB of files (backed up, of course), I re-installed the OS from the install disk and everything seems fine now.

  • Stuck on blank blue screen when booting- HELP!

    When I boot up up I get the normal grey screening with spinning pin wheel, but then it goes to a blank blue screen and just hangs there. Tried resetting the PRAM but didn't work, also want to boot from the install cd but I can't the cd drive door to open from the keyboard button.
    Help please!

    Hold the mouse down during startup to get the drive to open.
    Or use the OPTION key to stop at boot selector and do it then.
    I would make sure to have a working bootable backup of your drive at all times, and an emergency boot drive/partition.
    What might help:
    Boot from another drive. Turn off journaling. Repair drive.
    Once at Finder desktop, delete the caches folders on your main drive.
    /Library/Caches
    /System/Library/Caches
    /System/Library/Extensions.mkext
    If the repair was "successful" and DU is not 100% certain to see and fix all possible errors, for that Disk Warrior or TTPro would be needed.
    At the least, repair from current DVD of OS X, or SAFE BOOT, or Single User Mode and run FSCK.
    Then do Safe Boot from your main drive.
    But do install OS X to another drive to work from.
    PRAM only affects settings. If you mean PRAM/NVRAM from cold boot, that would help with corrupt nvram due to hardware changes.
    If you have or suspect a corrupt boot drive I would invest in Disk Warrior and/or TechTool Pro/Deluxe to use along with Apple Disk Utility.

  • Old mac g5 power pc stuck on blue screen on boot up wht should I do?

    I have  G5 mac power pc thats stuck on the blue screen when I boot it. can somebody help me. I had a power outage and was resetting the clock when it froze............
    iphonehaji

    Some things to try.
    A PMU reset.
    Resetting Cuda/PMU on Power Mac G5, Power Mac G4, Power Macintosh G3
    http://docs.info.apple.com/article.html?artnum=86760
    How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)
    http://docs.info.apple.com/article.html?artnum=3003417 Reassemble the computer and test the unit.
    If the power was off for a while, your internal PRAM battery may be weak or discharged. Suggest you replace the battery. Check this site for battery part numbers and sources. https://sites.google.com/site/macpram/mac-pram-nvram-cuda-pmu-battery-tutorial Mac PRAM, NVRAM, CUDA/PMU & Battery Tutorial
     Cheers, Tom

  • Why is my macbook pro stuck on a blue screen

    I was downloading a program that was put onto a disk image, then my macbook battery died (forgot it was unplugged). When i plugged it back in and booted it back up, it did the usual tone and apple logo/spinning gear. Shortly after it would go to a pale blue screen and occasionally have a spinning gear, but no matter how long i wait it stays on the same screen.
    i have tried everything here:        http://support.apple.com/kb/TS2570
    except i't wont let me start from the install disk (it just goes to the blue screen)
    i have the mac os x install disk one and two, but im also not sure what one to put in and if these are the right ones anyways.
    I also have a windows xp partition that i CAN access without getting stuck on the blue screen.
    So, is the hard drive corrupt even though i can access the windows partition?
    Do i need to replace the hard drive?
    i cant go to an apple store and get it fixed, i just dont want to drive there (but i will if i need a new hard drive)
    this is my first mac and i have only basic knowledge of the operating system.
    i think it was running on 10.6 (snow leopard), but i only have the install disks that came with my mac.

    To fix your issue is too complicated and lengthy to go into all of it here as it sounds like a hardware issue, it will require the services of person very familiar and experienced with Mac's to first recover your data and then restore OS X back to a functional state which may or may not require new hardware/software installed.
    If your under warranty or AppleCare, take it in for service.
    You can also hire the services of a local Mac computer support technician experienced in these matters.
    Have them look at your Wifi, RAM amount, extra storage and computer backup proceedures in the process.
    Good Luck.

  • My macbook won't start up, it gets stuck on the blue screen. can it be fixed? i suspect a hacking due to a strange phone call earlier which i thought was a scam.

    my macbook won't start up, it gets stuck on the blue screen. can it be fixed? i suspect a hacking due to a strange phone call earlier which i thought was a scam.

    Reinstall OS X without erasing the drive
    1. Repair the Hard Drive and Permissions
    Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
    2. Reinstall Snow Leopard
    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
    Download and install Mac OS X 10.6.8 Update Combo v1.1.

  • MacBook Stuck in Startup Blue Screen, HDD is Spinning

    Well, I fear the worst has occurred to my mid 07 Macbook.
    When I boot up the machine, it stays stuck in the blue screen start up, not able to find any startup disc. I gave a listen to the HDD and it is spinning when I try starting up. So this would mean a system failure, however I have had the motherboard replaced twice this year. Is the motherboard/system most liekly the issue?

    This has nothing to do with with iPhoto - post in the MacBook Forum - http://discussions.apple.com/category.jspa?categoryID=218
    LN

  • I am getting frequent lock-ups and blue screens during boot up. The lock ups occur during normal use and I cannot click anything or force quit. The cursor shows something is loading, but never stops. I have to use power button. Ideas?

    I am getting frequent lock-ups and blue screens during boot up on my Mac Pro.  The lock- ups occur sometimes during normal use and I cannot click anything or force quit. The cursor shows something is loading, but never stops. I have to use power button.
    I had the Mac Defender malware and I have used apple jack but still having issues.

    I am getting frequent lock-ups and blue screens during boot up on my Mac Pro.  The lock- ups occur sometimes during normal use and I cannot click anything or force quit. The cursor shows something is loading, but never stops. I have to use power button.
    I had the Mac Defender malware and I have used apple jack but still having issues.

  • My iPad is stuck on a blue screen.  It will not let me search or navigate between bookmarks.  The games all work but Safari is stuck on blue screen

    My iPad is stuck on a blue screen.  It will not let me search.  It is stuck on Google search page.  I cannot get out of there or navigate between bookmarks.  Can you help me, please.

    Hi wolfsong.warrior,
    Reset your device: Press down on the Home and Wake/Sleep buttons at the same time and continue to hold them until the Silver Apple appears (no data will be lost). Once the Home screen comes back up, check to see if everything is working correctly now.
    Cheers,
    GB

  • Mac won't start past blue screen, tried booting in single user mode said HD was ok, tried changing start up permission still no desktop

    Followed this:
    http://macs.about.com/od/MacTroubleshootingTips/qt/Troubleshooting-Mac-Startup-P roblems-Stuck-At-The-Blue-Screen.htm
    And this:
    http://macs.about.com/od/faq1/f/emergencystart.htm
    Still no luck, I have an external ready to transfer to free up disk space, can I use command prompt to transfer to external or is there easier way ?
    Thanks

    Since not one else is jumping in, I’ll give some suggestions.
    Try
    Mac OS X 10.6: If you see a blue screen at startup - Support - Apple
    http://support.apple.com/kb/PH7212
    OS X Mountain Lion: If you see a blue screen at startup
    http://support.apple.com/kb/PH11043
    Troubleshooting Startup and Login Items
    http://www.thexlab.com/faqs/startupitems.html
    You can always seek free help at an Apple store of for a fee at an Apple Authorized Service Provider.
    Genius reservation http://www.apple.com/retail/geniusbar/ .
    or find an Apple Authorized Service Provider https://locate.apple.com/country

  • I have an iMac G5 stuck on the gray screen with spinning gear.  I woke up to it being stuck on a blue screen, then force quit and now it's stuck on gray with spinning gear.

    I have an iMac G5 stuck on the gray screen with spinning gear.  I woke up to it being stuck on a blue screen, then force quit and now it's stuck on gray with spinning gear.  Please advise.

    If you have a G5 then it's a PPC (Power PC) based iMac, this is an Intel iMac forum. Try the Gray screen appears during startup link for troubleshooting steps. I suspect the HD has crashed.

  • My computer won't start up it's stuck on the blue screen

    my computer won't start up it's stuck on the blue screen

    I've researched and I'm doing the internet recovery HD, hopefully I can move on from this situation..

  • Blue screen on boot up

    I am having issues with my 13.3" MBP, blue screen on boot up?, cannot figure out why? If I log in as another user(from my older macbook) it will boot but I cannot get to my newer files and docs. Any thoughts?, it appears to be a permission issue as if I boot up as a target disk using firewire, the files I want to access are still on my hard drive.

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
    Be sure your Mac is shut down.
    Press the power button.
    Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
    *Note: If FileVault is enabled under Mac OS X 10.7 or later, or if a firmware password is set, you can’t boot in safe mode.
    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Test while in safe mode. Same problem(s)?
    After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

  • So my imac is stuck at the blue screen

    after i hear the startup tone with the grey screen with the apple logo i get stuck at the blue screen. tried to go to safe mode by holding the shift key but dint work. now have been looking at the blue screen for a while now. any chance the imac is dead or anything i can do about it? i dont mind rebooting the whole thing cause i backed up all my files on my hdd and also on dvd. not that i have not tried to to reboot it too.

    Well TM is at least backup, you can check  your AppleCare status on the right side of this page:
    https://expresslane.apple.com/Issues.action:

  • My iphone4 is stuck on a blue screen and will not shut off for restart, I have never dropped or had a problem  before....help

    My iphone4 is stuck on a blue screen and will not shut off or restart, I have never dropped or had a problem  before....help?

    Reset the device by pressing and holding the home and power buttons for 15-20 seconds until the white Apple logo appears.

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