Blue Screen of Death - only safe mode fully boots

Here's a question for speculation. My iMac G5 (ALS) will not boot up past the blue screen of death, except in safe mode. I've reset the PRAM, I've attempted Verbose Mode (but don't know what I'm reading there). I've attempted booting from the Leopard Installation Disk and from a firewire external drive with Leopard and Tiger installed on it. All I ever get is the blue screen and spinning beach ball. If can't boot from the optical drive, then I can't do an archive and reinstall. I used Tech Tool Pro Deluxe to do everything except a surface scan of the Hard Drive and everything passed (I couldn't find my apple hardware test disk).
The good news is that my data is backed up and I'm still covered by Applecare. I turned it in to the Genius Bar this morning and they had no idea what to do either (Hopefully they have a Genius Bar of their own). At this point the debate is simply academic. What do you think went wrong?

The drive may have been intact , but the main memory would have been replaced by the new board, so the old info would be gone. Look at [this|http://en.wikipedia.org/wiki/Motherboard].
Hope all continues well,

Similar Messages

I have an ibook g4 that boots to blue screen and hangs. Safe mode will boot but hangs after log in. I have reset PRAM, NVRAM, and the PMU. Booted from Diskwarrior and rebuilt and tested the HD, working properly. Boot from Tiger dvd shows images? no text

The tiger install dvd boots only to show an image of what looks to be two steps, not sure what its showing me.. possibly inserting RAM? Anyone have any ideas? Thanks in advance.

Could you get a picture of the screen, load that into your working computer,
and post it into a reply here? There are a few kinds of situations where a
similiar display of that sort may appear.
Given the G4 iBook PPC (which model) is a bit dated now, one has to
assume you have the original 'install-restore' DVD it came with, new.
What was or wasn't it doing, before you chose to try to boot Tiger DVD?
Do you have a second Mac, one w/ FireWire ports; maybe Thunderbolt?
It may be possible to further look into the ailing iBook G4 via FireWire
from a second Mac, and attempt to investigate, or save old data to some
external drive, USB Flash; in case you need to totally wipe the HDD.
An image of the iBook screen may be helpful. Someone else with recent
troubleshooting or extensive use of iBook portables (or other OS X issue)
that presents such a screen instead of a normal progress screen, may
have an immediate idea. Without an image, I am not venturing a guess.
What key did you hold down while trying to boot the computer from DVD?
One set of keys can get you a Startup Manager. Among other options.

'Famous' blue screen at startup AND safe mode boot failure

Dear all,
Two days ago, after installing the new Java update/airport update and restarting, I encountered a 'blue screen' on startup after getting past the mac symbol and swirling cog. I cannot say whether the updates were the cause (doubtful) of if my cheap USB mouse that was still plugged it caused it or whether i have the dreaded 'bad sectors.' The cause aside, here is what i've tried to fix the issue:
1) Disk Utility - Verification (OK'd) and Repairs (fine)
2) Disk Utility - Verification of Permissions (a few needed to be done) All repaired
-blue screen-
-Restart after period-
3) Rebooting in safe mode, removing startup items from the login items settings menu
4) Removing startup items from System/Library/StartupItems folders
5) Remove airport extensions (recent - date modified in list view)
(NB - safe mode i could say my desktop perfectl in original form and all files!)
-Restart-
-no longer able to start in safe mode-
-blue screen remains-
6)Single User mode -
resetting preference files (loginwindow.plist and windowserver.plist)
Finally system profiler from Tiger DVD states:
*Permissions repaired
*Dependency errors: com.apple.iokit.IOUSBFamily & com.apple.kernel.iokit no valid version found
*Integrity: kext has no receipt
I backed up most my data from the LAST crash, but recent music/1000 photos and others have been backed up altho i've been meaning to! Help!
I'M PANICKING now can no longer get in SAFE MODE!!
Please help Mac911!!!!
Charlie
G3 iBook 800mhz Mac OS X (10.4.6)

Update:
So, I managed to do ALL that you said, EXCEPT, the reboot and work fine business.
I created the admin account which works fine. So now I can see three user accounts (looks like there as already an admin type one).
The one I created works fine, only, I can only access/see the login screen through a safe boot, (otherwise blue screens...) . I can get into the admin account fine, but when restarting and logging in as my original user account it won't boot. Something is very wrong in MY user account. I think at this point my data there is still retrievable somehow for a backup, clean start. but i haven't reached that point yet.
Anyone have any clues what migt have caused the error in my user login?
One of the things I tried (too hastily now i admit) first was to remove the recently added updates from the extensions folder. has this exacerbated the problem? Can i put them back without logging in as me??
remember from my first post system profiler says software/extensions integrity 'kext has no receipt' and dependency errors: 'com.apple.iokit.IOUSBFamily and com.apple.kernel.iokit; no valid version found' - whereas in my newly created admin account it appears AOK.
is this the source?
any ideas anyone?
sorry lots of queries here but i am ever hopeful.....
All yours,
Charlie
G3 iBook 800mhz Mac OS X (10.4.6)

Help! blue screen of death and ibook won't boot at all

I ran the software update on my ibook (800 mhz, G3 running 10.4.3) today. I repaired permissions and rebooted before hand. I don't have any hacks on it. I have plently of room on the drive for the update (more than 6gigs on the 30 gig drive). I know my ibook is feeling its age, but now she won't start at all!
When I ran the update (which I already did on my imac with no problems), the ipod updater, quicktime and something else installed without problem. I came into the room to find that the Mac OS 10.4.4 updater had a red exclimation point next to it, and I had an error message that there was a problem with the update and that I needed to reboot. Restarting was my only option so I did. ibook would not start. It hung on the "starting OS X" screen forever (45 minutes). I force-restarted and booted in single-user mode. I have an app called AppleJack installed so I ran that (repairs permissions and such in single-user mode). I rebooted. Nothing. Blue screen of death.
Any ideas? Should I reinstall OS 10.4 from the CD?

How is mail different than that?
Mail keeps mailboxes in their own separate Finder files.
Home -> Library -> Mail
Home -> Library -> Mail Downloads
Notice also that Mailboxes themselves have their own folders in
Home -> Library -> Mail -> Mailboxes
Addressbook keeps addresses for Mail in its own set of Finder Files.
Home -> Library -> Application Support -> Addressbook
iCal keeps it in
Home -> Library -> Calendars
Whereas Microsoft Office is simply everything in one user belongs to:
Home -> Documents -> Microsoft User Data -> Identities -> Main Identity -> Database
So in reality you have 4 different places, and simple data corruption inside the database file itself is not going to take out all of the data when you use Mail, Addressbook, and iCal. I find it is much more robust to use Mail, Addressbook, and iCal purely for the reason that data corruption is not as prevalent a problem when your database gets large.
Single user mode is not a good idea, until the data is actually backed up in some fashion. Once you are getting input/output errors, trying to get it out of a place where there is data corruption by using a data recovery program is the first step with Prosoft Data Rescue.
You may try to rebuild the database file too, which might work, but since your machine is suffering a lot of input/output errors, I'm suspicious of the health of your hard drive, and you are booting to a blue screen, single user mode may not be enough, even Disk Warrior may not be enough. Now's the time to get all the data off the hard drive into another in a safe place. Data Rescue may be able to recover it. If not, you may have to deal with a data recovery firm.

Blue screen at start up,safe mode only, resolved ,what next?

I got the old stuck on blue screen at start up ,
would only boot in safe mode , after two afternoons of RAM test , repairing disk permissions , hrdware tests , zapping PRam and the likes to no avail , I finally resolved the problem thanks to a tip from this forum:
bad video card drivers ( ATIRadeon 8500 ) , after removing them from the extension folder , it boots up! ( I tried to reset the pram , it won't work though , one chime only then nothing).
so I'm wondering what's next , can i reinstall the video card drivers only ?
is it the card itself ? (everything looks normal) or should I go for an archive and install ?
any input would be great,
Thanks,
JB

Hi-
Jean Baptiste mentioned that he removed extensions for the drivers.
Removing a conflicting driver is fine as long as the driver specific for the card installed remains.
In this case, I think it may have been a corrupt driver, rather than a conflicting driver.
Radeon drivers in OS X have a good track record of compatibility, and such driver conflict is not a historically common occurrence.
Hard drive maintenance with Disk Warrior is the best way to correct corrupt files, unless bad RAM is corrupting the files.....
In your case, it shouldn't hurt anything to remove the Radeon 8500 drivers.
Could it be the driver extensions that are preventing a proper boot. The monitor displays perfectly in safe mode so I don't understand why it would be the video card.
Booting to Safe mode unloads drivers. Only very basic core graphics rendering drivers are loaded.
No Quartz/Quartz Extreme, no Core Image, no 3D acceleration, etc.
This doesn't tax a graphics card.
Failure to boot, or failure of graphics when drivers are loaded are due to one of two things- corrupt drivers or failing components on the graphics card.
A reinstall of the OS can rule out the first.
Installing a different graphics card is the only way to rule out the second.
Before buying a new card, I would try a fresh OS.
Installing a new OS on a separate drive, and booting to that is an easy way to test.

10.5.6 Blue Screen of Death and no DVD to boot!

I got the blue screen and don't have my disk. My wife has a new laptop with 10.5.5 DVD but it won't let me boot from my G5 Tower. I have Disk Worrier and was able to repair permissions, repair disk, download 10.5.6 combo reinstall, single user rsvp thing, update AJA control panel, nothing seems to work. Running out of ideas, do I need to blank drive and start over. If it won't boot from laptop 10.5.5 DVD or original G5 10.4 CDs I have, will it after I blank the whole thing? Help.

Well, that's a bummer, but you are going to need to get it back. Can you somehow get it back from this "friend"? Otherwise, I'm sorry to say, you will have to buy a new Leopard install DVD.
Maybe it's not too late to ask for it for Christmas?

HP probook 4720 graphics Blue screen of death

I have an HP probook 4720s (Product #: WT238EA#ACQ). I have upgraded my RAM to 6GB.
My problem. The other day I was busy playing a game when the computer froze and then turned off while it was turning off a small blue screen briefly appeared. I restarted the laptop and everything seemed fine, I left the computer for a few minutes and when I came back the screen was completely off but the computer was operating as normal. No key press or anything would put the screen back on.
Everytime after this event that I tried to put the laptop on it would start(HHD spin, CPU fan work, HDD light would blink for a bit then stop but the screen would stay completely black with no blue backlight). I tried hard reset and a number of other things like checking if the RAM was connected properly and still the screen remained off.
I decided to connect the laptop to an external monitor and I finally could display on the monitor but it still would not display on the laptop screen. After the windows emblem loaded the dreaded blue screen of death would appear with a STOP error 0x00000116 which after some looking up appears to be the graphics driver. After safe starting the system and rolling back the graphics driver to standard VGA adapter the windows 7 system was then able to start in normal mode. I've tried reinstalling the HD 5470 graphics driver but the blue screen of death continues to appear. I have completely reloaded the OS to no avail.
I disconnected the laptops screen from the motherboard without the graphics driver loaded, which didn't cause a beep but displayed on the external monitor when I connected it. I tried the same with the graphic driver loaded, still no beeps were heard and when I connected the external monitor the blue screen appeared.
From the tests I had tried, I believe that there must be an issue with the graphics card itself as the Blue screen of death only displays when the graphics card driver is loaded.
Could you please advise on what you feel I should do, Some assistance with this matter would be much appreciated. I appolagize for the long message.
Regards,
Byron
This question was solved.
View Solution.

Hi @Bax23 ,
Welcome to the HP forum!
To get your issue more exposure I would suggest posting it in the commercial forums since the probook 4720s is a commercial product. You can do this at:
Notebook - HP ProBook, ZBook, EliteBook, Compaq, Slate/Tablet PC, Armada, LTE.
The support page for your product may be helpful in the meantime: HP ProBook 4720s Notebook PC
I hope this helps.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

BLUE SCREEN OF DEATH (the wondows one)seriusly need help.

okay, well the storry goes like this, i'm on my way home on a subway, when all of a sudden my ipod gets VERY laggy, then just freezes, i try everything i can for a while, but it refuses to do anything. I get home, plug it into my pc, it says the ipod had been ****** up, it needs to be restored, i say "deal" it gets restored......and nothing happens...
i unplug the ipod, plug it back in, it says it needs to be restored again ...follow the procedure, now a bit confused.
Then (as the website says " third time's the charm") i connect my ipod, i get the icon in bottom right of my pc showing that there is something connected, and supposedly it's an ipod, however nothing shows up at my computer, or itunes.
then give it a minute or two, my computer flashes with the windows infamous blue screen of death waits a second, and restarts.
is there a way to solve this ? , i can't even SEE my ipod ...
Windows XP Pro

ough, i've tried resetting it, but that did nothing
...(the menu and center key) and the blue screen of
death only happens when ipod is connected, my pc runs
fine and stabel without the ipod...
is there a way to reformat the ipod without
connecting it to a pc ?
may be i could connect to macs at school and format
it there ?
Well, if you really want to reformat your iPod Hard Drive, I don't know if there's a way to do it without hooking it up to a computer.
Nevertheless, you can always try these steps on your PC. If this still doesn't work, try your friends' PC but make sure no iTunes software is installed... In your PC's case do these:
1. uninstall iTunes (it then asks to restart PC)
2. after restarting plug in your iPod to a usb port
3. after windows recognizes the iPod, open My Computer
4. look for the drive letter that refers to your iPod
5. right click on it and click reformat
6. once formatting is done right click on that drive letter again and click eject.
7. wait for the "do not disconnect" warning on your iPod to disappear then remove usb connection
You can then restore or update the iPod software by reinstalling and using iTunes.
I personally haven't reformatted my iPod yet but I did try doing steps 1 - 5 without actually clicking "format" in my other PC. Just give it a run and hope it will work. Good luck.
Self-Built Windows XP Pro Dual Booting XP Pro & Vista Ultimate

Blue Screen of death - now can't load Windows (even in safe mode)

Last night laptop (Satellite L500 19Z; Win 7 64 bit) crashed whilst playing CIV4. Got a blue screen of death; before I had chance to read any of the error messages on it the machine rebooted.
It loaded windows in safe mode fine then, and informed me as it had loaded safe mode OK the problem will be related to some recently installed software and I should uninstall programs I'd installed until it would load normally. As it was late last night I shut down and thought I'd sort it in the morning (in retrospect this may have been a mistake ....).
Today, when the machine tries to boot up it attempts a Startup Repair; unfortunately this fails every time and it says "Startup repair has tried several times but still cannot detemine the cause of the problem"
I looked at the log it produces but it passes all the individual tests.
I also can't access the advanced options for system recovery & support, which appears on the Startup Repair dialog box as it demands I be logged in, which apparently I'm not (presumably as the machine never got to the windows login screen before trying the startup repair). The error message reads "you must be logged in to access system recovery options. If you are having trouble logging in please contact your computer administrator for assistance. please click OK to restart the computer."
I've had a go at booting into the various advanced options (safe mode, safe mode with command prompt etc. but the outcome is the same).
I also tried the Repair your Computer option from the advanced boot options screen, but after the screen where it asks you to choose the language and keyboard, I get the same login error mentioned above.
Is there a way to repair or even run the hard disk based windows recovery (haven't got the recovery DVD with me as I'm away from home for a couple weeks) without logging into windows? I would have expected there to be but have yet to figure out how to do it.
(there are no disks in the disk drive, no other devices attached to the laptop - I've tried it with mains power and with the battery and have not noticed any differences)
Thanks
James

Normaly the reinstall data is on a separate part on your HD, not in Windows.
The register is only used for Windows.
If it doesn't work you can always try to reinstall from a DVD later.
It does mean all your data on C:\ will be gone. If you can hook your HD on an other PC you can try to safe your work with a recover prog.

IQ770 blue screen of death safe mode limited won't run

i turned on my comp the other day and got a blue screen of death. it let me enter my computer under a non-admin login in safe mode. i was unable to solve the problem without the computer flashing several more screens and then turning off. i was able to start it up again without the blue screen of death appearing again however it wouldn't run in anything but safe mode. now i cannot even do that so i tried a system restore and it takes me thought the process but in the screen where it shows you what drives will be restored it only has one box checked out of the three it lists. only my main drive. after i click on it to restore and i have now tried to restore a few times it doesn't working saying it was unable to restore my comp to the selected point. please help!!

For the IQ700 series
If you're running Windows Vista SP2, there is a patch for USB patch for NVIDIA chipsets
http://support.microsoft.com/kb/975163/
If you're running Windows 7, install this patch
http://h30434.www3.hp.com/t5/Lockups-Freezes-Hangs/Driver-update-for-Win7-USB-issue-on-nVidia-chipse...

IPhone5s stuck in recovery mode after lots of times displaying blue screen of death, cannot restore it as iTunes displays error 14 on verification, same time phone crashes again with blue screen.

hi, my iPhone5s is only 3 months old, it has been like a whole month now since it started crashing, displaying the blue screen of death, since yesterday it was in the loop of restart-crash, and now it is stuck in recovery mode after lots of times displaying blue screen.
I cannot restore it as phone continues crashing again with blue screen, when iTunes displays error 14 on verification.
help please, this phone is all the means of communication I have.

It's a hardware problem. That's it. You shouldn't bother yourself with this situation. Just see an AASP.

Blue screen of Death - Windows Vista

Hello,
My HP Pavillion has died - or maybe is just dying. I forced a shutdown yesterday because it froze completely. Now, it will not restart. When I start it, it gives me the black screen where it "scans" everything because it found some "fatal error" (drama queen much?) and then gives me my sign in screen, I sign in, and then I get a BLUE SCREEN where it informs me it is shutting down again (without even asking how I feel about it. HOW RUDE.)
Anyway, it shuts off, turns itself back on (goodness knows I'M not doing it) and then - the black screen checks my disc space again, sign in screen, blue screen, shuts down - you get the point ,it's an endless cycle.
Oh also, my keyboard is not working. The mousepad works, although only to move the cursor (I can't actually click on anything, which as of this morning, makes even signing in impossible.)
Is there any hope?
Thank you.

HI leetasee,
Sorry to hear about the Blue Screen of Death (BSOD) that you are getting. What is the error message that you are getting with the BSOD? A BSOD can either be caused by software or hardware. Let's see if you can check the computer for hardware failures using the HP Diagnostic Tools. Below I have included a link on how to use the tools. You can use them from the boot menu, run the System Test – Extensive.
Testing Hardware Failures Windows Vista:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c01443317&lc=en&jumpid=reg_r1002_us...
Something else to try is see if you can boot into safe mode.
Start your computer in safe mode:
http://windows.microsoft.com/en-ca/windows/start-computer-safe-mode#start-computer-safe-mode=windows...
If that works then try the link below to deal with any potential software problems.
http://support.microsoft.com/kb/958233
Thank you,
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

Blue screen of Death on Satellite M100

Hi
I have Satellite M100, we were having problems with the Blue screen of death occasionally, and then it seemed to get fairly consistent and the only way to ensure that the system didn't crash was to boot it in safe mode.
The sound had also stopped working. Decided to restore the system to factory settings so used the disc supplied and all went well till the system booted into windows allows you to go through the setup then blue screen again. The sound seems to have returned although it is a bit crackly.
So not sure whether this is the problem or not. Crashes Fatal system error and also driver_irql_not_less_or_equal.
Now can't boot into safe mode as windows setup hasn't finished....
Any ideas anyone?
Cheers
Simon

Hi
Yeah that;s what I am frightened of, tried several times no joy tried a normal xp pro disk as well as thought that might not have the right drivers and it might work but same there so guess it's a trip to the Toshiba hospital..... problem is guess everything is on the motherboard so by the time you have paid for a service call and motherboard you still have a 3 year old computer the figures don't add up and a new one would be the better option.....
Cheers
Simon

Satellite A105-S4284 gets Blue Screen of Death when coming out of standby

MySatellite A105-S4284 runnings Windows XP gets a BSOD after coming out of standby or hibernation. With standby, I'll see the login screen where I enter my password, and then it may show the desktop background or even the open app (Outlook or Word, typically) for a second, afterwhich the BSOC appears. For weeks I was getting a black screen sporadically after standby. Researched the problem and saw recommendations to update BIOS. So I updated the BIOS to the latest version, and then I started getting blue screens of death rather than a black screen. Thought the problem was McAfee, because I'd get crashes right after McAfee became active in the background, sometimes without going into standby. Cancelled McAfee, took it off with the cleaner, used Avast instead, and that seemed to help. But then BSODs came back. I uninstalled non-essential software, clearned registry with CC Cleaner, freed up more HD space and defragged, ran SpyBot, etc - but I still get the BSOD almost every time I go into standby or hibernate.
The stop messages on the BSOD don't show a driver. and all begin with 0x0000007E (0x000000C5, ... and then differ after that. One recent one followed with 0x804E13D5, 0xAA6B9B8C, 0xAA6B9888). Does that mean anything?
I've installed Microsoft's debugging tools to look at the dumps after a BSOD. Here is output for two recent crashes. Doesn't point to a driver. NTKRMLMP.exe is what crashes - do I need to replace that from the I386 folder somehow? I did have my Matsu**bleep**a DVD-CD drive suddenly quit a time or two until the computer was restarted. Should I reinstall the DVD driver? Or the graphics driver? Worried that I might break something by doing that.
Loading Dump File [C:\WINDOWS\Minidump\Mini030809-02.dmp]
Mini Kernel Dump File: Only registers and stack trace are available
Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows XP Kernel Version 2600 (Service Pack 3) MP (2 procs) Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 2600.xpsp_sp3_gdr.080814-1236
Machine Name:
Kernel base = 0x804d7000 PsLoadedModuleList = 0x805634c0
Debug session time: Sun Mar 8 16:05:07.187 2009 (GMT-5)
System Uptime: 0 days 4:22:53.890
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
BugCheck 1000007E, {c0000005, 804e13d5, a9860b8c, a9860888}
Probably caused by : ntkrnlmp.exe ( nt!ExAllocatePoolWithTag+7a9 )
Followup: MachineOwner<snip>
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e)
This is a very common bugcheck. <SNIP>
Arguments:
Arg1: c0000005, The exception code that was not handled
Arg2: 804e13d5, The address that the exception occurred at
Arg3: a9860b8c, Exception Record Address
Arg4: a9860888, Context Record Address
Debugging Details:
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".
FAULTING_IP:
nt!IopfCallDriver+2d
804e13d5 ff548638        call    dword ptr [esi+eax*4+38h]
EXCEPTION_RECORD: a9860b8c -- (.exr 0xffffffffa9860b8c)
ExceptionAddress: 804e13d5 (nt!IopfCallDriver+0x0000002d)
   ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 00000000
   Parameter[1]: 00000070
Attempt to read from address 00000070
CONTEXT: a9860888 -- (.cxr 0xffffffffa9860888)
eax=0000000e ebx=00000001 ecx=87546020 edx=853fe1a0 esi=00000000 edi=f772471c
eip=804e13d5 esp=a9860c54 ebp=a9860ca0 iopl=0         nv up ei ng nz ac po nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000             efl=00010292
nt!IopfCallDriver+0x2d:
804e13d5 ff548638        call    dword ptr [esi+eax*4+38h] ds:0023:00000070=????????
Resetting default scope
CUSTOMER_CRASH_COUNT: 2
PROCESS_NAME: System
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".
EXCEPTION_PARAMETER1: 00000000
EXCEPTION_PARAMETER2: 00000070
READ_ADDRESS: 00000070
FOLLOWUP_IP:
nt!ExAllocatePoolWithTag+7a9
805517b9 e9e4feffff      jmp     nt!ExAllocatePoolWithTag+0x7bf (805516a2)
BUGCHECK_STR: 0x7E
DEFAULT_BUCKET_ID: NULL_CLASS_PTR_DEREFERENCE
LAST_CONTROL_TRANSFER: from 804e13d9 to 804e13d5
STACK_TEXT:
a9860c6c 804e13d9 8753d018 853fe1a0 00000000 nt!IopfCallDriver+0x2d
a9860ccc 805517b9 00000000 00000002 00000000 nt!IopfCallDriver+0x31
a9860dac 80575723 a9f4533c 00000000 00000000 nt!ExAllocatePoolWithTag+0x7a9
a9860ddc 804ec6d9 f7720ce2 a9f4533c 00000000 nt!PspSystemThreadStartup+0x34
00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x16
SYMBOL_STACK_INDEX: 2
SYMBOL_NAME: nt!ExAllocatePoolWithTag+7a9
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 48a4044a
STACK_COMMAND: .cxr 0xffffffffa9860888 ; kb
FAILURE_BUCKET_ID: 0x7E_nt!ExAllocatePoolWithTag+7a9
BUCKET_ID: 0x7E_nt!ExAllocatePoolWithTag+7a9
Followup: MachineOwner
0: kd> lmvm nt
start    end        module name
804d7000 806ff000   nt       # (pdb symbols)          c:\symbols\ntkrnlmp.pdb\B883868B88CB415A92EC010CF6A115A52\ntkrnlmp.pdb
    Loaded symbol image file: ntkrnlmp.exe
    Mapped memory image file: c:\symbols\ntkrnlmp.exe\48A4044A228000\ntkrnlmp.exe
    Image path: ntkrnlmp.exe
    Image name: ntkrnlmp.exe
    Timestamp:        Thu Aug 14 05:09:14 2008 (48A4044A)
    CheckSum:         0021B760
    ImageSize:        00228000
    File version:     5.1.2600.5657
    Product version: 5.1.2600.5657
    File flags:       0 (Mask 3F)
    File OS:          40004 NT Win32
    File type:        1.0 App
    File date:        00000000.00000000
    Translations:     0401.04b0
    CompanyName:      Microsoft Corporation
    ProductName:      Microsoft® Windows® Operating System
    InternalName:     ntkrnlmp.exe
    OriginalFilename: ntkrnlmp.exe
    ProductVersion:   5.1.2600.5657
    FileVersion:      5.1.2600.5657 (xpsp_sp3_gdr.080814-1236)

In safe mode it is not possible to standby. That is disabled. Tried to make it possible with Toshiba's power control service, but it is not available.
In a new account, the BSOD still occurs. I created a new account, logged out of my account, and went to the new one. Tried standby. It came out of standby for a second and then had the blue screen of death.
In checking the event manager, I seen errors shortly before crashes sometimes that involve the CD.
So I went to Toshiba.com and downloaded the DVD RAM driver and ran it, reinstalling the driver, and then restarted. I also saw that there was C-Dilla driver in my drivers. I uninstalled the SafeCast program that I think is associated with C-Dilla, moved the C-Dilla driver out of the drivers to a distant folder, unchecked C-Dilla in MSCONFIG so it won't load (it was still there after removing SafeCast), and then reinstarted. So with a new DVD Ram driver and neutering, I hope, of C-Dilla, I tried things again and the system appeared to be crash free - better than it had been. But then a crash occurred - BSOD - and upon restart, the CD locked up, and crashed again.
After restarting, there was a new dialog that popped up after Windows launched indicating that there had been an error with SONIC DLA. Before the crash, there was an event n the event viewer:
My last error comes from the Plug and Play Manager:
The device 'MAT**bleep**A DVD-RAM UJ-841S' (IDE\CdRomMAT**bleep**A_DVD-RAM_UJ-841S________________1.60____\5&226f6cf2&0&0.0.0) disappeared from the system without first being prepared for removal.
Hmmm. So things are still vulnerable. Any ideas? Buy new CD drive? Or new computer?

Satellite L450D-13X - Black Screen of Death/Blue Screen of Death

Hello everyone.
I have a Toshiba Satellite L450D-13X computer for the kids, and for the price it's a good laptop. Have had no issues with it until two weeks ago when the screen froze for the boys whilst playing a game and downloading a program from the net. Had to do a force shutdown and since then we have a BSoD on every boot-up. This is what we have tried:
On 'Starting Windows' we are given an option of either 'Launch Startup Repair' which ends up as BSoD or 'Start Windows Normally' which reverts back to the 'Starting Windows' option list.
Any attempt to enter 'Safe Mode' results in BSoD.
Attempting to boot an ISO of the Windows Recovery Disk on a USB key (we did highlight it and promote it to the top) results in BSoD. Borrowing a proper Window 7 installation DVD and highlighting this as an option results in BSoD.
In fact, the only option we used that threw up something different was using advanced boot options. On one of these options we got the Blue Screen of Death with the following information:
Unmountable_Boot_Volume
Disable Bios Memory Options such as caching/shadowing
Tech info
Stop: 0x000000ED (0xFFFFFA80023C2CDO 0xFFFFFFFFC0000185 0x0000000000000000 0x0000000000000000)
I don't mind erasing the hard drive and starting again, there's nothing on it that's critical. I'd very, very much appreciate a steer on this. Checked the web for stuff and nothing seems to assist in any other options. I am not particularly tech literate but can follow instructions.
Thanks in advance.

In my opinion system has a problem to start, so there are two most possible ways waht failed. Firstly as "Akuma" and "Keany" says HDD so check it. Second thing is RAM module. Check it using Memtest 86+ or if you have a possibility replace it for a while by other module. HDD is more possible, but RAM module is easier and faster to check (that's my opinion)

Blue Screen of Death - only safe mode fully boots

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