Windows 7 BSOD error: 0x0000003b. Help needed


New Member
I had a really nasty virus named Obfuscator.xz which forced me to do a total reset of my Windows. After the reset I started getting these BSOD and they seem to appear at random.

Additional info, may be unrelated: After my last reinstall it took at least 1 minute to shut down my computer (normally takes about 5 s), and also took a lot of time to start it up. After I reinstalled my graphic card drivers this problem seems to be gone.

Dump File : 062115-5194-01.dmp
Crash Time : 2015-06-21 18:51:46
Bug Check Code : 0x0000003b
Parameter 1 : 00000000`c0000005
Parameter 2 : fffff880`0f2e52ec
Parameter 3 : fffff880`0ab8c950
Parameter 4 : 00000000`00000000
Caused By Driver : atikmdag.sys
Caused By Address : atikmdag.sys+b12ec
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+748c0
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\062115-5194-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 278 744
Dump File Time : 2015-06-21 18:52:13

What I have tried:
-Total reset of Windows 2 times, repair Windows 1 time. Full driver update after each reset.
-Updated my drivers. Uninstalled graphic drivers, installed them again.
-Did ram test -no errors
-Done this in Command Prompt: "sfc.exe /scannow" -no errors
-Performed full scan with various antivirus programs and found nothing suspicious.
-Tried installing hotfix for this but I can't run the hotfix because of the error message "The update is not applicable to your computer".

My computer:
OS: Windows 7 Professional 64 bit
CPU: Intel Core i5-4690K CPU @ 3.5 GHz
Motherboard: ASRock Z97 Anniversary
Memory: Corsair Vengeance DDR3 PC12800/1600MHz CL10 LP 2x8GB
Graphics card: Asus Radeon R9 290 DirectCU II OC HDMI DP 2xDVI 4GB

I have been spending my entire spare time for the last few days but have had no success with the BSOD.


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Windows Forum Admin
Staff member
Premium Supporter
Much thanks I'll start debugging right now.. Will post back shortly.


Windows Forum Admin
Staff member
Premium Supporter
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck 3B, {c0000005, fffff8800f2e52ec, fffff8800ab8c950, 0}

Probably caused by : atikmdag.sys ( atikmdag+b12ec )

Followup: MachineOwner
Hi Mountain,
every dump file is the same and blames the GPU driver as the probable cause. There is also a slight possibility that this may be RAM related but we'll see.

I can also see you were using chrome around the time of the bsod and it can be the case that out of date versions of the chrome browser can cause bsod's. Make sure you have the latest version by opening the settings tab and click on 'About Google Chrome'.

Your graphic driver is also slightly out of date. Uninstall the old driver using this application:
This app removes the driver in safe mode (you have to boot into safe mode to use it) and makes sure no messy bits of driver are left lying around.

Please update to the last available Whql driver:

atikmdag.sys Thu May 29 15:58:06 2014: AMD Graphics driver please update:

As you seem to have a history of gpu related bsod's please run this application to test the Vram on the gpu:

RTKVHD64.sys Tue Jul 30 13:06:46 2013: Realtek High Definition Audio Function Driver please update:

xusb21.sys Thu Aug 13 23:10:17 2009: XBox USB wireless controller BSOD issues in Win7 with 2009 driver:
Try these:

Post any new dump files


New Member
Uninstalling Graphic drivers with that program and then reinstalling it solved the problem. Many thanks! :D Tried using the Vram test application but couldn't figure out which settings to use. But now when it's working I guess i don't need that.


Windows Forum Admin
Staff member
Premium Supporter
Hey that's great and thanks for updating us on your issue. Any problems please post back.