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:

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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 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.

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..

Restarted my iMac and now it's stuck on the blue screen

I have not had a problem with the actual computer since I received it a year ago.
This is what I did on my computer today:
I downloaded Google Chrome, for the sites that don't really work as well with Safari and then later on, I changed a couple of the Folder Sharing permission for a few picture folders and a couple of document folders so "Everyone" does not have access to them, only me. I went into my System Preferences > Accounts to see who was under "Staff" and any other computer I tried to connect to. I tried to unlock the Accounts section and my System Preferences kept freezing, so I had to force quit it.
Every time I had a freezing issue with my PC, I always restarted it, so that's what I did, I restarted my iMac. Now, it only shows a blue screen. It goes through the gray screen with the apple logo, and then the blue screen. I see my cursor to my Magic Mouse for a few seconds and then it vanishes. Now all I have is a blue screen and it's been on a blue screen, this time, for about 15 minutes.
I tried to hold down the power button, mainly out of panic, and I also unplugged everything and then tried to turn it back on and that hasn't worked.
Please help. : (

Sounds like you changed some of the file and share permissions
incorrectly and then complicated things further by hoping a restart
in the middle of this mistaken direction could cure it somehow.
Sometimes that works; but some parts of the system are not to be
messed with, since some items have to be where they are to work.
And some kinds of keyboard/mouse functions on boot are reluctant
to perform with a bluetooth or wireless mouse & keyboard; so a USB
wired keyboard is very handy to own & have on hand. I have spares.
(You may have to try and see if a power management reset can help,
if the problem has compounded by now into more than the first issue;
a System Management Controller reset. (Don't recall how, but this
will vary with the model and build year of the computer.) And it may
not help resolve the issue; booting from the installer disc may...)
Some command keys require early power in the keyboard; sometimes,
a wireless keyboard or mouse won't be seen by the computer at a
critical moment in early boot stages; so a procedure may not occur.
Keyboard commands and shortcuts on boot are important to use &
know in the case of troubleshooting and maintenance.
Can you start the computer from the OS X install disc that came
with the computer (or if you've upgrade the OS to a later than
originally shipped version, use the latest retail disc) by holding
the C key down on boot, until you see a window with either a
choice to select a language or (maybe second window) a menu
in the top of the screen, where you see Installer (instead of Finder)
and check the top menu bar by clicking to read the drop-down
menus, looking for Disk Utility.
When you find Disk Utility, as indicated from the booted Installer disc
(disc #1 of a restore install set) select the name of your computer drive
which probably is Macintosh HD in the Disk Utility left side-bar, and then
click on 'repair disk.' When that is done, note if there is a message in
the little screen inside the utility, what it said; then choose to run the item
named 'repair disk permissions' and then restart the computer normally.
This would include selecting the computer's hard disk drive from an
option in the Installer's menu bar after quitting Disk Utility; to choose
from a startup manager, the Macintosh HD as a boot volume, & restart.
You could try and see if the computer would re-start and with the Shift
key held down, through the boot process (from the hard disk drive OS)
and if it gets to a point of asking for your Admin password, enter it, &
continue until a desktop appears. If this works, use GO in the Finder
top menu bar and find Utilities folder, open it, and find Disk Utility, then
run 'repair disk permissions' on the volume Macintosh HD. + Restart.
This may not work, but if it sorta does, you could try and see if things
run OK. Another possible fix (without performing an Archive & Install
from the booted Install disc) may be to get the Combo update file for
the OS X version you have in the computer already, & reinstall it.
Be sure to repair disk permissions before and after this kind of action.
If you want other users of your computer to not access your files, be
sure to set up other user accounts with less than Admin privileges.
Then understand how security works in Mac OS X. Your user folder
content is not normally accessible by someone running that computer
from a different user account, if the computer is used correctly.
One of the better Mac browsers is Camino from Mozilla; FireFox is OK,
and for some users, Opera is fine enough. There are others; and I am
not so sure about Chrome at this point. No real need for me to use it.
In any event...
Good luck & happy computing!
{ edited 2x }

I powered off my Ipad and it is stuck on the blue screen and won't shut off. What can I do?

I shut down my Ipad but it has become stuck in shutdown mode on the blue screen and won't turn off. What can I do to turn it off and try to restart it?

Both buttons:

My imac is stuck at the loading screen and wont start up...

My 2006(ish) Intel core 2duo 2.16 mhz 20" imac wont start up, it only stays at the loading screen, how can i fix this?

Since you purchased your iMac long before the Lion OS was released your system should have come with a set of DVD's that can be used to reinstall the OS and applications. If you can locate those disks then stick the Install DVD into the optical drive, then power on the system while holding down the option key. Your system should boot with a menu showing the bootable volumes. After a few seconds you should hear the optical drive whirr and then see the Install DVD appear in the menu. Select the Install DVD and boot the system. Once booted you will have to select your language. Normally this disk is used to reinstall the OS, however for this exercise I would like you to pull down the Utilities menu in the menu bar and select Disk Utility. You can use the Disk Utility to check whether your hard drive is OK. If it fails the SMART (Self Monitoring Analysis, and Reporting Technology) status then you will need to replace the hard drive. You should also run the 'Verify Disk' and 'Repair Permissions' options if the SMART status indicates the drive is passing.

My iMac is stuck on the white screen

I have been trying for weeks to get past the white screen with the apple on it but nothing is working. I have held down the cmd key and I have also tried holding down the shift key and also unpluging it. Any other tips?

Have you read for possible solutions over in the "More Like This" thread over here?----------------------->
How To Fix White Screen On Your iMac
http://www.youtube.com/watch?v=4aZ71BGTkPs

HELP! iMac is stuck on the white screen?

This is how it looks like once I turned it on: http://www.youtube.com/watch?v=lpiBgXQCJ4k&feature=related
What should I do? I was able to log in yesterday after doing the PRAM method and now this method doesn't work. Should I do what's suggested in the top comments? It's alredy been 4 days since this problem persisted.

Try some of the suggestions in this:
Gray screen appears during startup

2011 21.5" iMac Freezing, Not Waking Up, Blue Screen

Hi all,
I bought a new 2011 base 21.5 inch iMac and have had a few problems ever since I first got it. At first it would simply freeze the screen, but I could still move the mouse cursor although I could not interact with anything on the screen. I could still SSH into the machine just fine in order to issue a shutdown command. A few times when restarting it will get stuck on the blue screen. Finally, and most common, sometimes the machine will not wake from sleep. I will do a hard reset and I get the error report screen. I always send the error report to Apple. Here is a snippet of the report:
Wed May 25 14:38:33 2011
panic(cpu 1 caller 0xffffff7f80d9b650): "ATICLASS::detectPowerDown: GPU is not found. NO MM PCI access!!!\n"@/SourceCache/GraphicsDrivers/GraphicsDrivers-6.34.13/Common/IONDRV /ATI/IOFramebuffer/ATIFramebuffer/Controller/Sources/R800/EvergreenClocks.cpp:83 1
Backtrace (CPU 1), Frame : Return Address
Things I have tried but still haven't cleared the issue up:
Software Update
PRAM reset
SMC Reset
Disk Repair
Boot from DVD, extended hardware test
Reinstall OSX from DVD after erasing Macintosh HD volume
Thanks.

Well I am sorry to say that four months later I still have all the problems mentioned in my original post. No updates or solutions have worked. In Lion whenever the system freezes or refuses to wake, the console shows a long list of GPU debug values.
The problem seems to only happen after being on for a long time. If sleep is enabled, it will not wake. If sleep is not enabled, after a while of not being used something--either a game, video, or itunes... will cause the UI to freeze. This makes it difficult to reproduce, and when I take the computer in to Apple, in the 30 minute genius session of course everything works just fine. I does not seem to be temperature related because when idle or asleep for a while the temps do not rise.
At this point I am regretting the purchase of this system. I seriously hope that Apple can resolve it soon. I am aware that many, many other iMac users have similar issues, but there has been no acknowledgement from Apple.
Not happy.

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.

Ibook G4 freezes either when its on the grey loading screen or the blue screen. Sometimes I get it to my desktop but it always freezes in like a minute. Someone help I really need this computer!

I have tried everything online and my iBook g4 wont stop freezing. Safe Mode doesnt even help, it still gets stuck on the blue screen! It either gets stuck on the grey loading screen or the blue screen. Rarely I am able to boot past everything and get to my desktop but after about 30 seconds it freezes again. This laptop was passed down to me and I have no original papers or disks that came with this laptop. I am really trying to figure this out without buying a disk because if it doesnt work I wont be out $60. Someone help I have tried putting it in safe mode single mode holding c down during start up! I need more options.. Please this is the only computer I have right now! (PS: I know warranty has expired a long long time ago)

Hello,
Some information you may or may not have read.
Troubleshooting portables that won't turn on or start up
http://support.apple.com/kb/TA25686?viewlocale=en_US
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/TS1367
Without the disk you are limited on options. It could be an issue with the hard drive and would required the disk to run disk utility.

Can't get past the Blue Screen during startup

I decided to upgrade the 4/8/08 firmware on my aluminum bluetooth keyboard this afternoon using my mac mini. Shortly after the procedure started, something happened to the keyboard and it could not complete the install. I tried a second time, but again no luck. I then decided to replace the keyboard batteries and try again, but I was no longer able to connect the keyboard to the mini.
I decided to restart the computer and try the whole procedure again. But after the grey screen comes up with the Apple logo, the mini went to the blue screen with the spinning gear, then the mouse appeared in the upper left hand corner, then a little later the gear, then nothing, then the mouse, then the gear... I could never get past this blue screen.
I plugged in a wired keyboard and was able to startup 10.5 using the install DVD, which allowed me to check and repair the permissions and the disk. After a restart, still stuck on the blue screen.
I tried zapping the pram. Still couldn't get past the blue screen.
I was not able to start up in safe mode (is the timing critical for when to hold down the shift key?)
I started up in single user mode and attempted to move the preference files as described here:
http://docs.info.apple.com/article.html?artnum=106464#symp1
but got an error that I did not have the correct permissions. I assume that is because I was trying to save the preference1.old (and preference2.old, etc) files to the root part of my hard drive.
Any suggestions? Does it make sense that upgrading the firmware on a bluetooth keyboard could take down the whole computer???

Disconnect all peripherals from your computer.
Boot from your install disc & run Repair Disk from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
Select your language.
Once on the desktop, select Utility in the menu bar.
Select Disk Utility.
Select the disk or volume in the list of disks and volumes, and then click First Aid.
Click Repair Disk.
Restart your computer when done.
Repair permissions after you reach the desktop-http://support.apple.com/kb/HT2963 and restart your computer.

IMac G5 ALS hanging at blue screen

Hi -- I've read variations on this problem, so hopefully I can provide enough information to get a solid thread started.
On startup, my iMac G5 hangs at the blue screen. I've run the install discs, repaired permissions, checked the drive, all successful. Also tried the AppleCare CD, Techtool said all systems passed inspection.
I can boot in safe mode, no problems there.
I tried archive and install, but after restart had the same trouble.
I tried booting in single-user mode to see what the log revealed, and the system seems to hang at the following:
airport link active
in6is_addrmulticast = 0
flags = 0 fails
can't assign requested address
wide area service discovery disabled to avoid crashing defective DNS relays 192.68.1.1
workaround Bonjour unknown error = 0
I notice that some of the wifi networks in my apartment complex are recognized in single-user mode just before the system hangs, which is odd.
I've tried applejack to repair the cache and preferences, but no progress.
Next step appears to be wiping the drive and reinstalling the OS, but thought I'd check here first. Thanks!

I altered the TCP/IP settings, but still no luck, so I proceeded with a full erase and install of 10.4. Much to my dismay, the system still refused to boot after the installation was complete.
At this point I'd run across some threads discussing the capacitor cap failures of the iMac G5's, so on that hunch I popped the back off to take a look.
One of the capacitors is indeed leaking out of the top, so I'm taking the unit in to the Apple store today to receive what will mostly likely be a death certificate. This unit is a refurb and the extended repair program ended in Dec. 2008, so I'm thinking my options are limited.
I'll post back with the Apple store response just in case anyone might find it useful in the future.

IMac will not start up - blue screen after months of Leopard use

I have an iMac G5 that will not start up. It hangs at the blue screen, but does not have the issue with the ApplicationEnhancer.bundle file. It will start up in safe mode.
This iMac will not start from a bootable external drive (the external drive can be used as a start up disk successfully with my iBook G4). The iMac's internal drive can be used as a start up disk for the iBook (via the target mode) and does not appear to have any problems. Does this seem like it is a hardware issue with the iMac? The iMac also hangs at the blue screen if I attempt to start up with the Leopard install disk after using the startup disk preference pane in safe start mode.
I have repaired permissions, verified the disk, etc., using the disk utility. I have cleared caches, preferences, and so on, using Mac HelpMate.

It may be that some of your login items might be incompatible with the mac. Also, try booting up from the install disk and repair your disk.

So my imac is stuck at the blue screen

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