What is the blue screen?

When I start my MacBook I get a blue screen and it stops there. Safe mode doesn't work, what can I do now , please? Thank you!

Depending on the version of OS X your computer is running
the methods to troubleshoot and resolve the issue vary...
If your computer has an OS X later than Lion, it may have
a Recovery partition on the hard disk drive where that can
be used to bypass and perhaps repair the bootable OS X.
•Apple - about OS X Recovery...
http://www.apple.com/osx/recovery/
•OS X: About OS X Recovery - Support article:
http://support.apple.com/kb/ht4718
For a cross section of other ideas w/ links to blue screen:
https://www.google.com/#q=Mac+OS+X+blue+screen
If your computer shipped with DVD install-restore discs
and you have them, it may be possible to use the first
disc in a set that has the installer on it, to boot up the
computer, and use the installer's version of Disk Utility
without running that installer; to attempt to verify and
repair the hard disk drive. If not, & yours is running a
later version of OS X that has Recovery on its HDD,
then use instructions to access OS X Utilities and use
it to run Disk utility on the internal hard disk drive.
Good luck!

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Firefox is causing my computer to crash. It is causing the blue screen of death. What can I do to solve this problem?

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== This happened ==
Every time Firefox opened
== June 2010 ==
== User Agent ==
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[http://forums.mozillazine.org/viewforum.php?f=39]

What is nipalk.sys and why does it give me the Blue Screen of Death?

Recently I purchased a 6211 USB data acquistion unit. Everything worked fine until one day Windows Explorer crashed (we all know how rare that kind of event is...). When I re-booted, I got the Blue Screen of Death, with a message about nipalk.sys being the culprit. I booted in Safe Mode and re-named this file, and then was able to boot normally and re-install the driver software for the 6211, and everything was fine...for about a week, when Windows Explorer did it again (Oops!).
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Paul-
OK. When I can afford the time, I will try removing all NI software and re-installing. I have LabVIEW 8.0, DAQmx (of course), NI Vision development, and IMAQ.
I also had LabVIEW 7.1 on my machine because it was too much trouble to
remove it when I upgraded to 8.0 I have since removed 7.1, but I think there are still a lot of older versions of the "extras" that came along with it still lurking on my hard drive....
I was hoping for some guidance for a short-term "work around:"
1. If I just re-install DAQmx, can I make a copy of nipalk.sys and store it somewhere as a back-up to avoid the painfully long 2 CD re-install of DAQmx?
2. If the answer to 1 is "no", then exactly what part of DAQmx installs nipalk.sys? It is a multi-part install, and if I know which part is responsible for nipalk.sys, I can repair just that and save a lot of time.
To answer your questions about version: I'm not sure. I don't have convenient access to the disks at the moment, but they came with my 6211, which I ordered in May of 2007. I would be tempted to call it "the latest", but DAQmx seems to get updated quite frequently, so let's just call it a "recent" version.
Thanks,
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I powered off my Ipad and it is stuck on the blue screen and won't shut off. What can I do?

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Both buttons:

My iPod was updating to iOS 6 and i shut it off during the update because it was taking too long and now my screen in baby blue i've tried to drain the battery but when i plugged it in to charge the blue screen came back on.I dont know what to do

My iPod was updating to iOS 6 and i shut it off during the update because it was taking too long and now my screen in baby blue i've tried to drain the battery but when i plugged it in to charge the blue screen came back on.I dont know what to do

Try:
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My computer won't turn on, it just stays on the blue screen, whats wrong?

This has happened before, but the problem was supposed to go away. A window pops up randomly and says "start-up disk is full" and i just click "OK" and move on. But then today i turned off my computer and about 30mins. later I turned it back on and it got stuck on the blue screen. WHAT DO I DO?????

Reboot holding the Shift Key down and target some large files like Movies to copy to a external storage drive, then delete them from the boot drive and reboot a couple of times so OS X realizes there is new space available and boots normally again.
See #7 here
Step by Step to fix your Mac
See "Storage drive" here
Most commonly used backup methods explained
If that doesn't work then do this
Create a data recovery, undelete boot drive

When I clicked on Firefox, the update bar started but when it stopped Firfox would not open. The blue screen of death popped up and said something about a new installation. We restarted the computer and now Firefox will not open. Help!

When I clicked to open Firefox the update bar appeared and an update loaded. Usually when this happens Firefox will open up when the update is finished. This time it did not open. when I clicked on the icon again the blue screen opened and said something about a new installation and if this was the first time you have seen this screen restart your computer and try again. I restarted the computer and when I clicked on the Firefox icon the "hour glass" would appear like it was trying to open but it never would open. I don't know what else to do.

See below -- the way I asked the question the first time may not be clear. This post was a goof but I can't figure out how to delete it

I got the Blue Screen-But Not After Installing Leopard

I have not installed anything recently. Except Quake 4 but haven't even run it yet. I Rebuilt my Permissions and Restarted and suddenly got the Blue Screen. I had to hold down the power button and reboot. This is the first time it's ever happened. After I rebooted I got an error message saying OSX shut down unexpectedly. It also said this:
Sun Feb 24 10:46:29 2008
panic(cpu 0 caller 0x0019D334): "simple lock deadlock detection: lock=0xd8428b0, cpu=0, owning thread=0xe2376b0"@/SourceCache/xnu/xnu-1228.3.13/osfmk/i386/locks_i386.c:317
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x108cd8 : 0x12b0e1 (0x457024 0x108d0c 0x13321a 0x0)
0x108d28 : 0x19d334 (0x45eaa8 0xd8428b0 0x0 0xe2376b0)
0x108d48 : 0x7c0fff21 (0xd8428b0 0x8 0x1 0x19d311)
0x108da8 : 0x1aeeeb (0x7c1f10a4 0x5328a4 0x2ae14865 0xd9dbd60)
0x108dc8 : 0x136aff (0x3 0x5 0x108e18 0x5baa44)
0x108de8 : 0x141681 (0xd9dbd60 0x0 0x108e18 0x41d16e)
0x108e18 : 0x41d774 (0x5baa40 0xd96bc5c 0x0 0x1298d4)
0x108e38 : 0x836b6ebf (0xd96bc40 0x2 0x108e88 0x1415aa)
0x108e98 : 0x836b6f1a (0xd933000 0x0 0x1 0x8358d000)
0x108eb8 : 0x420af3 (0xd933000 0xda98c80 0x10 0x1997f6)
0x108ef8 : 0x435cbb (0xda98c80 0x0 0xd980f80 0x0)
0x108f28 : 0x82d9e521 (0xdab8880 0x0 0xdab8880 0x0)
0x108f58 : 0x7bee5777 (0xd7fb000 0x0 0xd8de500 0x53)
0x108f78 : 0x7bedec41 (0xd7d2a00 0x0 0xd8de500 0x53)
0x108f98 : 0x445d88 (0xd8ec400 0x0 0xd915b00 0x53)
0x108fd8 : 0x19ed2e (0x83dd3db0 0x0 0x0 0x4e5000)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AppleUSBEHCI(3.0.7)@0x836b3000->0x836c4fff
dependency: com.apple.iokit.IOUSBFamily(3.0.8)@0x8339b000
dependency: com.apple.iokit.IOPCIFamily(2.4.1)@0x7be78000
com.apple.driver.AppleAPIC(1.2.0)@0x82d9d000->0x82d9ffff
com.apple.driver.AppleIntelCPUPowerManagement(9.33.0)@0x7c0fe000->0x7c116fff
com.apple.driver.AppleACPIPlatform(1.2.1)@0x7bedd000->0x7bf19fff
dependency: com.apple.iokit.IOPCIFamily(2.4.1)@0x7be78000
dependency: com.apple.iokit.IOACPIFamily(1.2.0)@0x7be8e000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9C31
Kernel version:
Darwin Kernel Version 9.2.0: Tue Feb 5 16:13:22 PST 2008; root:xnu-1228.3.13~1/RELEASE_I386
System model name: MacPro1,1 (Mac-F4208DC8)
--Does anyone know what this means or why it happened? Thanks a lot.

Start with http://support.apple.com/kb/TS1541 and the links therein.

Hi, my iphone its in recovery mode and when i restore my iphone 5s loading show the blue screen and show note on itunes (unknown error 14) please i need your help please . thanks

Hi, my iphone its in recovery mode and when i restore my iphone 5s loading show the blue screen and show note on itunes (unknown error 14) please i need your help please . thanks

In the article Resolve iOS update and restore errors this is what it says about error 14:
Check your USB connections
Related errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4005, 4013, 4014, or “invalid response."
If the USB connection between your device and computer is interrupted, you may be unable to update or restore.
To narrow down the issue, you can also change up your hardware:
Use the USB cable that came with your device, or a different Apple USB cable.
Plug your cable into a different USB port directly on your computer. Don't plug it into your keyboard.
Try a different computer.
If necessary, resolve any further issues with the USB connection, then with your security software.
If you're still seeing the error message, check for hardware issues by following the next section.

Can't get past the blue screen of death

I woke up this morning to discover my computer froze on the screensaver sometime last night. I restarted and after the grey apple screen got a blue screen which shifted to a lighter blue screen with the mouse cursor and it never moves beyond that. My Applecare expired in July. Here's everything I've tried:
-I was running Leopard, so put my Leopard disc in to startup from it and run Disc Doctor, it weirdly spits it out, while I'm holding 'C' and right about the time it should startup from it.
-I zapped the PRAM
-I reset the SMU
-I tried running tech tools from the Apple Care Disc, it spits that one out too
-I restarted in 'single user mode', ran fsck and it corrected a couple things but no change
-I put in the Tiger Install Disc that came with the computer, I'm able to startup from that and I go ahead and run disc doctor. nothin
-I run hardware test, the extended version, everything passes, calming my fears about the logicboard, video card, etc
-I restarted from the Install Disc and perform an Archive and Install of Tiger. It all goes smoothly, except now it goes from the grey apple screen and freezes at the first blue screen, not making it to the lighter one with a cursor.
-I retry using the Apple Care Disc with Tech Tools and instead of spitting it out, it takes a really long time to load and come up with 2 blue squares overlapping on a black background, a Tech Tools Glow Plugin finder window comes up in one of them and then everything freezes with weird red pixels across the top of the finder window. ODD
-NEW EVENT, it can boot in Safe Mode in Tiger. What should I do from there?
Any help would be greatly appreciated.

It reads the disc when I have it running in Tiger Safe Mode, but won't startup from it. It no longer spits it out, but the disc spins and spins and the fan runs hardcore for a few mins and nothing beyond the blue screen.
I do have another Mac, but its an older powerbook from work and I can't really do much on it. The powers that be control pretty much everything on it.
In theory, would a clean install (from my Tiger disc) take care of this all? I'm considering getting another external harddrive to backup everything and then just whiping the harddrive and starting over.

I can not boot past the blue screen, but safe mode is fine...

I have no clue what I did...
Everything was working fine on my iMac (which is from like 2008). I did a file migration transfer from my Macbook pro to the iMac and everything seemed to be good. I could see everything, etc. I went to update the software on the iMac since the computer has not been used in a while. After everything updated and installed the computer restarted and has not been able to move past the blue screen when booting. I can start in safe mode just fine. I have done everything I can find on how to trouble shoot with no luck.
I have reinstalled the OS X
I have held down every combo of keys when restarting the computer
I have made sure the correct disk is highlighted for starting up
I have done everything I could find online...
I do not have the option to erase under the disk utility, or repair?
I am so lost and have no idea what to do. Did the migrate do this? I could use any help! Thank you.

Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it.
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. 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 the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.

HELP... after 10.4.11 update I can't boot past the blue screen

HELP... after 10.4.11 update I can't boot past the blue screen, and it is pretty frustrating, to say the least. Here's what happened last night:
I installed elgato's eyetv 250, and at the end it asked to update the software. I did so, and when I tried to run it again it said I had to be running 10.4.11. I quickly went over and downloaded the 10.4.11 combo updater to my desktop and proceeded to repair permissions on my disk so I could run the updater.
I repaired permissions and started the updater. It got halfway through updating and said something like it could not finish and stopped. No reason why - it just stopped. I tried it again, and it did the same thing after going about 25 to 30 percent through the updating process. I thought that was very odd, so I checked, and I was running 10.4.9.
I thought I needed to get the 10.4.10 update, so I downloaded the combo updater several times. It would not run, giving me some error message that it would not even open, so I thought I needed to restart my computer to get it to run. I did so.
That's when my computer would not boot. It gets through the initial white screen with the logo in the middle and the revolving circle, and while it stays there for a long time the fans run increasingly faster. They tame down, and then the blue screen with "Mac OS" on it and the blue progress bar comes up. There is no blue progress bar, though... that's where it stops and will not go any further.
Can ANYBODY help me get this thing booted back up? It was so late last night that before I started I didn't back the Mac up, and of course I have a project on there that I need to finish Saturday afternoon for a company.
ANY HELP WILL BE SO GLADLY APPRECIATED. If you can give me step by step instructions on what to do, you will surely be blessed! Thanks for any help,
Barry
Jeremiah 29:11

Hi mrstang, and a warm welcome to the forums!
It sounds like Disk Directory problems.
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc that came with your computer, 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. (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. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then 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 finishes.
The usual reason why updates fail or mess things up, or things don't load/run, is if Permissions are not fixed before & after every update, with a reboot... you may get a partial update when the installer finds it doesn't have Permissions to change one obscure little part of the OS, leaving you with a mix of OS versions.
Some people get away without Repairing Permissions for years, some for only days.
If Permissions are wrong before applying an update, you could get mixed OS versions, if Directory is the slightest messed up, who knows!
If many Permission are repaired, or any Directory errors are found, you may need to re-apply some the latest/biggest updates again, or even do an A&I if you have enough free disk space.
The combo update for PowerPC-based Macs...
http://www.apple.com/support/downloads/macosx10411comboupdateppc.html
The combo update for Intel-based Macs...
http://www.apple.com/support/downloads/macosx10411comboupdateintel.html
Repair Permissions before & after re-install, then reboot again each time.
If all the above do not resolve the problem, then it's time for an Archive & Install, which gives you a new/old OS, but can preserve all your files, pics, music, settings, etc., as long as you have plenty of free disk space...
http://docs.info.apple.com/article.html?artnum=107120
Be sure to use Preserve Users & Settings.

HELP! Can't get past the blue screen when booting up...

Hi,
Please can anyone help. I've searched the web and found possible causes of the fault but not a solution....
I upgraded my hardrive, used SuperDuper! to clone my drive, make it bootable etc then transferred the new drive to my Macbook Pro.
Now, every time a boot it up with my account set to auto login, it freezes on the blue screen. It doesn't go any further.
I've entered in Safemode, added a second 'Admin' account and set the login preferences to show the login window. Which allows me to log in as the second account holder. This works in normal mode, and then once logged in, i can switch accounts to my normal account.
This is the only way i can use my account.
I've looked at the fonts and used 'Font Doctor' to fix them. I can't seem to be able to fix my preferences (com.apple.programename.com), Onyx doesn't seem to fix it and i've no way of finding out if a preference file is causing this myself.
I've also done an OSX reinstall then software update. No good!
I've tried so many things as advised by various people online but it's clear to me that it's a) Account issue, b)Startup issue once logged in.
Please can anyone advise? I'm assuming that it's only related to my account, and that it's to do with the startup of the account...
I have OS X 10.6.8 on a macbook pro unibodied (1st gen, Aug 2008).

Thanks. However, i found a lot of errors so i chose not to act on what i didn't know.
This is how i managed to work it:
Activate ROOT user
Login as ROOT
Update to latest OSX 10.6 (was just released)
Restarted
Logged in as main user... worked fine. Not sure what i did but it worked.
I had tried all other methods but non worked...

Imac frozen at blue screen after i went into disk utilities and cleaned my free space. I tried holding down T key as it reboots and i get a message. Start up disk full empty it how can one emptie it if you cant get past the blue screen

Imac frozen at blue screen after i went into disk utilities and cleaned free space.
I tried holding down T key as it reboots
and i get a message. Start up disk full empty it how can one emptie it if you cant get past the blue screen?
to make matters worse we bought the IMAC of amazon uk on the 4/07/011 so what can we do?
please remember how frustrating it is when asking for help when the helper telling you to type something on the screen when its frozen
Tell us when you can type some instuctions to the software how do you get to the doss prompt so to speak to do this
Thanks

i tried all this thanks
i can not get past blue screen and message Your disk is full it needs to be emptied Please not I cant proceed past this message.
no matter what you tell me
Am i right ok in thinking that
when i went into disk utilities and chose to clean my free space i left it over one hour to do its stuff
i came back and there was no progress bar just the box so i quit the program and when i opened mac mail the system just froze i forced quit mail rebooted and blue screen death
Now when free space is being cleaned is it the same as windows dose the utility write lots of 0 on the hard drive then rebbot its self to free the space
basicly is my hard drive full of 00000 is this why im getting this message because the process was interupted
I need to know if i need outside help i bought the computer on line on amazon uk what dose one do next

Very Strange Rendition of the "Blue Screen" Problems

So I'm familiar with some of the blue screen freezes, but the problems that I am encountering are very very strange, so let me start:
Two computers are affected: a MacBook Pro and an Aluminum iMac. Both computers are running Leopard.
The MacBook Pro:
A few days ago, it crashed to the blue screen. Turned the machine off and powered it back on. The computer goes to the gray apple screen, then to the blue screen. Once at the blue screen, it does this: Blue screen for a few seconds -> progress indicator spins for a few seconds and disappears -> Mouse shows up for a few seconds and disappears -> Blue screen -> Progress indicator -> Mouse. It cycles like this indefinitely. I tried deleting the loginwindow preferences. I also tried deleting application enhancer preferences, no luck...
The iMac:
Started up fine. After a few minutes of not using the machine, it will go to the blue screen. Turn machine off and it starts again. Here's where it gets strange: If you start up with safe mode, the iMac exhibits the blue screen cycle on login that the MacBook Pro experiences. Without safemode, it started. So, I tried creating a new user account to see if it was user preferences, and up on doing that, now the iMac gets hung up on the blue screen login cycle just like the MacBook Pro with or without safe mode.
So... weird/misc. parts:
Two machines that have been running leopard for some time, no recent upgrades.
Problems starting happening at around the same time.
Computers linked on LAN and Time Capsule.
Both computers using MobileMe.
I'm stuck - any ideas?!?!
Message was edited by: mpaulsen
Message was edited by: mpaulsen

Some additional thoughts...
the MacBook Pro did not have automatic login and had the problems. The iMac did have automatic login and did not have the problems. When automatic login was disabled on the iMac, it did have the problems. When the iMac used safemode, which disables automatic login, it had the problems also.
So... clearly something with the login window is messed up... but I tried deleting the login window preferences with no avail. Not sure what this means, but interesting I suppose.

What is the blue screen?

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