Stop c000021a

zone23

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I have a Toshiba L355D-7901 I have gotten this BSOD error with every version of 7. I've tried a number of things I think the machines going to need some BIOS update or something. Anyone have any ideas?

STOP: c000021a {Fatal System Error}
The Initial Session Process or System process terminated unexpectedly with a status of 0x00000001 (0x00000001 0x0010408)
The system has been shutdown.

Processor and Chipset3
• AMD Turion™ X2 Dual-Core Mobile Processor RM-72
o 2.1 GHz, 1MB L2 Cache, HyperTransport™ 3: up to 3.6
(GT/sec)
• AMD M780G chipset Memory4
• Configured with 4GB PC6400 DDR2 SDRAM
Storage Drive5
• 250GB (5400 RPM) Serial ATA hard disk drive
Fixed Optical Disk Drive6
• DVD SuperMulti (+/-R double layer) with Labelflash™ drive supporting
11 formats
o Maximum speed and compatibility: CD-ROM (24x), CD-R (24x),
CD-RW (24x), DVD-ROM (8x), DVD-R (Single Layer, (8x)),
DVD-R (Double Layer, (6x)), DVD-RW (6x), DVD+R (Single
Layer, (8x)), DVD+R (Double Layer, (6x)), DVD+RW (8x), DVDRAM
(5x)
o Supports Labelflash™ media to burn high quality labels directly
on the disk.
Display7
• 17.0” diagonal widescreen TruBrite® TFT LCD display at 1440x900
native resolution (WXGA+)
o Native support for 720p content
Graphics8
• ATI Radeon™ 3100 Graphics with 256MB-1406MB dynamically
allocated shared graphics memory
Sound
• Built-in stereo speakers
• Sound volume control dial
• Built-in microphone
Input Devices
• 104 key US with 10-key
• TouchPad™ pointing device
• TouchPad™ Enable/Disable
• Control Buttons:
o Mute button
o Media button
o CD/DVD control buttons (Play/Pause, Stop, Previous Track, Next
Track)
Communications
• Webcam and microphone built into LCD bezel
• Modem9
• 10/100 Ethernet
• Integrated Wi-Fi® compliant wireless:10
o Atheros® 802.11b/g wireless-LAN
Expandability
• 2 main memory slots. Both slots may be occupied.
• ExpressCard™ slot (ExpressCard/34 and ExpressCard/54)
• 4-in-1 Bridge Media Adapter
o Secure Digital, Secure Digital High Capacity, Memory Stick™,
Memory Stick PRO™, MultiMedia Card [shared slots]
Ports
• Video
o RGB
 

My Computer

Computer Manufacturer/Model Number
Toshiba L355D-7901
OS
Windows 7 X64
CPU
AMD Turion™ X2 Dual-Core Mobile Processor RM-72
Motherboard
AMD M780G chipset
Memory
4GB PC6400 DDR2 SDRAM
Graphics Card(s)
ATI Radeon™ 3100 Graphics
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
17.0” diagonal widescreen TruBrite® TFT LCD
Screen Resolution
1440x900
Hard Drives
250GB (5400 RPM) Serial ATA
Mouse
Microsoft Bluetooth Notebook Mouse 5000
Wow! Nice system!. Updating the BIOS would not be a bad idea. If you can boot up in safe mode, check the Event Log for other indicators of the error. Check this Blue Screen of Death Survival Guide: Every Error Explained - Page 1 | Maximum PC for help of BSOD's.

Where you upgrading or clean install? Where you installing the 64 bit version? It sounds like either a BIOS compatibility issue or a 64 bit driver issue. You could try installing the 32 bit version of Windows 7 RC when it is available or get it from torrent.
 

My Computer

Computer Manufacturer/Model Number
Dell Inspiron 1525 Notebook
OS
Windows 7
CPU
rocessor Intel(R) Pentium(R) Dual CPU T2390 @ 1.86GHz, 1867
Motherboard
Intel(R) ICH8 Family Chipset
Memory
Installed Physical Memory (RAM) 4 GB
Graphics Card(s)
Mobile Intel(R) 965 Express Chipset Family (Sux)
Sound Card
Intel(R) High Definition Audio HDMI
Thanks got it at Best Buy for $599 upgraded the RAM for 20 bucks. I'm trying to get the x64 to work and I did try a few x86 builds with the same results. I also updated the BIOS to the latest available from Toshiba but no go. I would think a driver issue also but it will do it on a fresh install with no updates or drivers, it also does it with the drivers. BTW Toshiba has x64 drives available for this laptop you would think they would work.
 

My Computer

Computer Manufacturer/Model Number
Toshiba L355D-7901
OS
Windows 7 X64
CPU
AMD Turion™ X2 Dual-Core Mobile Processor RM-72
Motherboard
AMD M780G chipset
Memory
4GB PC6400 DDR2 SDRAM
Graphics Card(s)
ATI Radeon™ 3100 Graphics
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
17.0” diagonal widescreen TruBrite® TFT LCD
Screen Resolution
1440x900
Hard Drives
250GB (5400 RPM) Serial ATA
Mouse
Microsoft Bluetooth Notebook Mouse 5000
I have the same system, only had it about 5 weeks but I was able to install Windows 7 RC x86 with no problem. I did have BSOD issues when I tried to install the x64 version. Right now I am re-downloading x64 and am going to try burning at a slower speed. I have a hdd that I have Vista x64 Ultimate installed on with no issues so my Win7 x64 install was either a bad burn, bad download or the Windows 7 x64 RC is flawed. I will post my results in a while.

When I tried to update my bios, Toshiba said it was already at the latest version.
 

My Computer

Computer Manufacturer/Model Number
Toshiba Satellite L355D-S7901
OS
Windows 7 RTM Professional x64
CPU
AMD Turion X2 Dual-Core Mobile Processor RM-72
Memory
4GB
Graphics Card(s)
ATI 3100 256MB+
Screen Resolution
1440x900
Hard Drives
Toshiba 500GB SATA 5400rpm
This is a nasty error that can be caused by many different things.
I don't think that I've encountered one in Windows 7 yet either.
Here's a link to a brief description of the error: Troubleshooting Windows STOP Messages

As the description states, it's one of the few cases where the failure of a user-mode process can cause a BSOD. Determining which process is the difficult part tho'.

Most fixes that I've seen in Vista revolved around:
- malware
- Windows Updates
- registry corruption

Windows7 compatibility is a tricky issue, and the lower the functioning of the drivers is, the less likely it is that they will be compatible. In the past the Toshiba BIOS has given me fits, not wanting to work with bootable media and tests that work on the majority of other systems (so it could be a BIOS incompatibility).

If you're able to get into Safe Mode, please go to C:\Windows\Minidump and zip up the files located there and upload them with your next post. If there aren't any there (or you have problems with them), let us know.

Also in Safe Mode, try the Startup Repair tool (the Repair your computer option). Then, in Safe Mode, try the Vista big 4 troubleshooting tools (not all will work in Safe Mode). Go to start and type one of the following and press Enter:

perfmon /report
reliability monitor
wercon
event viewer

Look for errors in each of the reports. In Event Viewer, look under the Windows Logs for the System log files and look for errors around or shortly before the BSOD occurred.
 

My Computer

Computer Manufacturer/Model Number
Home built (x64), Lenovo x61s Tablet, Samsung Netbook
OS
Win7 x64 + x86
CPU
Intel i7 920, other Intel chips, and the Atom in the netbook
Motherboard
Asus P6T Deluxe
Memory
12 gB; 4 gB Lenovo; 1 gB Samsung netbook
Graphics Card(s)
ATI 4870
Sound Card
Yes, I have one of these
Monitor(s) Displays
32" Sharp Aquos TV
Screen Resolution
800x600 - I have vision issues
Hard Drives
4 - 150 gB Velociraptors in RAID 5
Promise controller
PSU
1000 watt (can't recall the brand)
Case
Antec 300
Cooling
Big honking cooler that was rated highly at Toms Hardware
Keyboard
Microsoft Natural
Mouse
Logitech Trackman
Internet Speed
Cable
Other Info
GeekSquad UPS
CyberPower UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
The first few times I tried installing Windows 7 x64 RC, I was able to get it installed but on the first reboot I would get a BSOD. I didn't bother writing down the error codes, just kept trying. Finally gave up on x64 and was able to install x86 with no problems what so ever. I then swapped hdds and was able to install Vista Ultimate x64 also with no problems what so ever. I have that hdd in now. My last 3 attempts after re-downloading and re-burning ended with the same results of the OP. :mad:
 

My Computer

Computer Manufacturer/Model Number
Toshiba Satellite L355D-S7901
OS
Windows 7 RTM Professional x64
CPU
AMD Turion X2 Dual-Core Mobile Processor RM-72
Memory
4GB
Graphics Card(s)
ATI 3100 256MB+
Screen Resolution
1440x900
Hard Drives
Toshiba 500GB SATA 5400rpm
I had no problems with Vista x64 either its just x64 7. I thought it had something to do with driver signing but I tried the laptop in test mode and got the same results.
 

My Computer

Computer Manufacturer/Model Number
Toshiba L355D-7901
OS
Windows 7 X64
CPU
AMD Turion™ X2 Dual-Core Mobile Processor RM-72
Motherboard
AMD M780G chipset
Memory
4GB PC6400 DDR2 SDRAM
Graphics Card(s)
ATI Radeon™ 3100 Graphics
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
17.0” diagonal widescreen TruBrite® TFT LCD
Screen Resolution
1440x900
Hard Drives
250GB (5400 RPM) Serial ATA
Mouse
Microsoft Bluetooth Notebook Mouse 5000
Apparently this has not been fixed ion the Windows 7 x64 RTM. I downloaded and installed it last night, got through the install with no problem but after the Windows update and reboot, BSOD and error message appeared. The x86 RTM works fine just like the x86 RC did. :mad:
 

My Computer

Computer Manufacturer/Model Number
Toshiba Satellite L355D-S7901
OS
Windows 7 RTM Professional x64
CPU
AMD Turion X2 Dual-Core Mobile Processor RM-72
Memory
4GB
Graphics Card(s)
ATI 3100 256MB+
Screen Resolution
1440x900
Hard Drives
Toshiba 500GB SATA 5400rpm
Apparently this has not been fixed ion the Windows 7 x64 RTM. I downloaded and installed it last night, got through the install with no problem but after the Windows update and reboot, BSOD and error message appeared. The x86 RTM works fine just like the x86 RC did. :mad:

rgartin

Have you seen this How to troubleshoot a "STOP 0xC000021A" error

Ken
 

My Computer

Computer Manufacturer/Model Number
HP Pavillion dv-7 1005 Tx
OS
Win 8 Release candidate 8400
CPU
[email protected]
Memory
4 gigs
Graphics Card(s)
Nvidia 9600M
Sound Card
HD built-in
Monitor(s) Displays
17" Wxga
Screen Resolution
1440x900
Cooling
none
Internet Speed
45Mb down 5Mb up
I have a similar model toshiba laptop and I have had the same issues for months, with EVERY build it windows 7, usually putting in a vista disc and formatting the HD would fix it, but with the final RTM that doesn't even work.

I can put the dvd in and it will load drivers and get to the point were it has the windows 7 logo with the flying colored logo, then it stops and blue screens, I can't even get a chance to partition the hard drive or anything.

I updated my bios today thinking that would help but it didn't. Looks like im stuck with vista or have to get a 32 bit OS.

This is just stupid microsoft hasn't realized this problem and let an OS go out the door in this condition.
 

My Computer

OS
vista x64
AS per always. not 100% but since Win95 98% of all BSOD is due to DRIVERS.

You might try setting install mode in Compatibility mode for Vista.
 
AS per always. not 100% but since Win95 98% of all BSOD is due to DRIVERS.

You might try setting install mode in Compatibility mode for Vista.

I would not say 98% because I've seen alot of hardware BSOD's
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
DELL VOSTRO 3650
OS
Windows 8.1 PRO
CPU
3rd Generation Intel Core i7‐3612QM CPU @ 2.10GHZ
Memory
8GB DDR3
Graphics Card(s)
NVIDIA GeForce GT 525M (128 bit), 1GB Grpahics
Screen Resolution
1920X1080
Hard Drives
750GB 5400RPM
As far as drivers go you would think that the drivers included on the windows 7 dvd would be compatibile with the OS. I BSOD with out installing a single file all it takes is a reboot after the install finishes.


I have talked to Toshiba and it looks like they will be supporting the L355d-7901 in windows 7. The girl I talked to pretended to be knowledgeable although she didn't know that Toshiba had started releasing drivers for 7 already. I think its going to take a BIOS update gentlemen.

I'm back to Vista X64 for know.
 

My Computer

Computer Manufacturer/Model Number
Toshiba L355D-7901
OS
Windows 7 X64
CPU
AMD Turion™ X2 Dual-Core Mobile Processor RM-72
Motherboard
AMD M780G chipset
Memory
4GB PC6400 DDR2 SDRAM
Graphics Card(s)
ATI Radeon™ 3100 Graphics
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
17.0” diagonal widescreen TruBrite® TFT LCD
Screen Resolution
1440x900
Hard Drives
250GB (5400 RPM) Serial ATA
Mouse
Microsoft Bluetooth Notebook Mouse 5000

My Computer

Computer Manufacturer/Model Number
Toshiba Satellite L355D-S7901
OS
Windows 7 RTM Professional x64
CPU
AMD Turion X2 Dual-Core Mobile Processor RM-72
Memory
4GB
Graphics Card(s)
ATI 3100 256MB+
Screen Resolution
1440x900
Hard Drives
Toshiba 500GB SATA 5400rpm
I would not say 98% because I've seen alot of hardware BSOD's
I'm only relating info from MS. I actually thought it was higher myself. but 98% of the problems are not MS (OS) related. They say the problem is manufacture.

Hardware is like Devices. they all need drivers. ?Still all in all the c000021a error goes back to Win95 and 64Bit OS. and that is a lot of OS's that have the problem or is it the other manufactures that feel its not worth there time to fix.

Hope he gets it fixed.
 
I *think* this is the stop code I sometimes get and it's related to my attempts to overclock just a little bit more.
 

My Computer

Computer Manufacturer/Model Number
Asus CG5290
OS
Windows 7 x64 RTM Retail
CPU
Intel i7-920 Quad @ 4.0Ghz. Stepping D0.
Motherboard
Asus Rampage II GENE
Memory
9GB DDR3 @ 1600 Mhz. 9-8-8-24-CR1
Graphics Card(s)
XFX ATI HD5870 @ 900/1300
Sound Card
SupremeFX X/Fi HD Audio onboard
Monitor(s) Displays
Samsung 24" WS
Screen Resolution
1920x1200
Hard Drives
OCZ AGILITY-EX (64 GB, SATA-II, SSD SLC NAND Flash)
Hitachi HDT721010SLA360 (1 TB, 7200 RPM, SATA-II)
Cavalry (500 GB, 7200 RPM, eSATA-II)
PSU
Antec TruePower 650 Watts
Case
Ugly but functional.
Cooling
Oversized heat sink, lots and lots of fans.
Keyboard
MS
Mouse
MS wireless explorer
Internet Speed
101/15 - Optimum Online Ultra
Well I finally got windows 7 to work on my laptop, but I had to install 32 bit, someone else mentioned it I think, it has to do with 64 bit and driver enforcement.
 

My Computer

OS
vista x64
I'm only relating info from MS. I actually thought it was higher myself. but 98% of the problems are not MS (OS) related. They say the problem is manufacture.

Hardware is like Devices. they all need drivers. ?Still all in all the c000021a error goes back to Win95 and 64Bit OS. and that is a lot of OS's that have the problem or is it the other manufactures that feel its not worth there time to fix.

Hope he gets it fixed.

Ahh. The problem is not MS but, yes, the manufacturers. Example, when vista came out and people were lacking drivers, everyone was quick to say MS and Vista is s**t. Sorry, didn't know MS had to release ATI graphics for your card. :)

It's not MS's fault if the manufacturers can't keep up with them... :geek:
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
DELL VOSTRO 3650
OS
Windows 8.1 PRO
CPU
3rd Generation Intel Core i7‐3612QM CPU @ 2.10GHZ
Memory
8GB DDR3
Graphics Card(s)
NVIDIA GeForce GT 525M (128 bit), 1GB Grpahics
Screen Resolution
1920X1080
Hard Drives
750GB 5400RPM
Ahh. The problem is not MS but, yes, the manufacturers. Example, when vista came out and people were lacking drivers, everyone was quick to say MS and Vista is s**t. Sorry, didn't know MS had to release ATI graphics for your card. :)

It's not MS's fault if the manufacturers can't keep up with them... :geek:


It IS MS's fault though when they provide generic drivers that cause the PC to bluescreen before you can even install windows.
 

My Computer

OS
vista x64
It IS MS's fault though when they provide generic drivers that cause the PC to bluescreen before you can even install windows.
MS doesn't "provide" the drivers - they reposit the drivers provided by the manufacturers. The reposited driver does not fail on all systems. In your case, it seems, you a system not capable of 64-bit.
 
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