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Windows 7: BSOD when closing programs 0x00000050

09 May 2014   #1
orthas

Win 7 Ultimate 64
 
 
BSOD when closing programs 0x00000050

My system has been stable for many years, most recent HW change was addition of SSD about 1 year ago. Now maybe a month ago I started getting BSOD's. Always the same error code: BCCODE 50 0x00000050. These would occur when closing programs (such as games, chrome) or when alt-tabbing. After the start of these crashes, I updated some drivers, but that had no effect.

I have ran Windows memory tester for couple times about 5ish hours and it's had no errors. Also I have run chkdsk on all disks and no errors.

Attached is the dump from most recent crash.

Thanks in advance!


My System SpecsSystem Spec
.
10 May 2014   #2
Thedoctor44

 

Can you roll back your graphics driver as we've had quite a lot of issues with these latest ones.
Roll back through the device manager.

warning   Warning

Before changing drivers, make sure that you have earlier System restore points made in your computer. You can check it easily by using CCleaner looking at Tools > System Restore.

If there are no points, make a System Restore Point Manually.


To roll back using Device Manager do the following:
  1. Go to Start
  2. Type Device Manager
  3. Expand your Display Adapters
  4. Right click on your graphics card
  5. Click on the driver tab
  6. Then click roll back driver

Stress test your graphics card with Furmark

I recommend running it for around 30 minutes

warning   Warning

Furmark will increase the temperature of your GPU rapidly so keep and eye on your temperatures
My System SpecsSystem Spec
10 May 2014   #3
orthas

Win 7 Ultimate 64
 
 

I'll give Furmark a try tomorrow. However I doubt it would be stability issue as it never crashes when a program is running, even a heavy game.

I can sure try rollback, but since the crashes started to happen before I updated drivers, isn't that counterintuitive? I mean I know for sure that the old drivers had the crashes.
My System SpecsSystem Spec
.

10 May 2014   #4
Thedoctor44

 

Well your driver before was quite old and the latest versions seem quite unstable so rolling back to the second to latest version should help.
My System SpecsSystem Spec
11 May 2014   #5
orthas

Win 7 Ultimate 64
 
 

The option to roll back drivers is blanked out for me? Should I uninstall and reinstall the 2nd newest? Attached is newest crash log, again happened when I alt-tabbed from FTL (game) to Chrome.

I ran Furmark for 30 mins and no artifacts. Temp was stable at 90.
My System SpecsSystem Spec
11 May 2014   #6
Thedoctor44

 

Uninstall the drivers completely and install the previous version.
90 is a bit too hot but it doesn't seem to be causing stability issues.
I think the graphics card is ruled out.

If you still get crashes after installing the other display driver then I recommend enabling Driver Verifier.
Only enable Special Pool.

Enable Driver Verifier to monitor the drivers.
Driver Verifier -Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.

information   Information

Why Driver Verifier:
It puts a stress on the drivers, ans so it makes the unstable drivers crash. Hopefully the driver that crashes is recorded in the memory dump.

How Can we know that DV is enabled:
It will make the system bit of slow, laggy.


warning   Warning

Before enabling DV, make sure that you have earlier System restore points made in your computer. You can check it easily by using CCleaner looking at Tools > System Restore.

If there are no points, make a System Restore Point Manually before enabling DV.


Tip   Tip
  • If you fail to get on the Desktop because of DV, Boot into Advanced Boot Options > Safe mode. Disable DV there. Now boot normally again, and try following the instruction of enabling DV again.
  • If you cannot boot in Safe mode too, do a System Restore to a point you made earlier.


Let us know the results, with the subsequent crash dumps, if any.
My System SpecsSystem Spec
22 May 2014   #7
orthas

Win 7 Ultimate 64
 
 

Thanks for the instructions. I changed to older display drivers and the crashes changed too: no longer BSOD during alt tab, but instead complete freezes while playing. The only way to get out of it would be to hold the power button. After a few of those I went with the driver verifier and got immediate BSODs (different code than before). Couldn't get in Windows at all and couldn't get safe mode up so I did system restore. Attached is the log.
My System SpecsSystem Spec
22 May 2014   #8
Thedoctor44

 

Daemon Tools!

Code:
*** WARNING: Unable to verify timestamp for dtsoftbus01.sys
*** ERROR: Module load completed but symbols could not be loaded for dtsoftbus01.sys
Probably caused by : dtsoftbus01.sys ( dtsoftbus01+1360 )
Daemon Tools is a well known cause of BSODs, remove it immediately, you'll have to find an alternative as there's no way around this.
My System SpecsSystem Spec
22 May 2014   #9
orthas

Win 7 Ultimate 64
 
 

OK! I'll report back after have done that. I don't even use it at the moment, it must have evaded me when I have cleansed background processes.
My System SpecsSystem Spec
22 May 2014   #10
orthas

Win 7 Ultimate 64
 
 

It seemed to work, driver verifier ran for few hours and then games were also stable. However I got a BSOD with new error code when shutting down the computer, after closing all the programs. Attached is dumps.
My System SpecsSystem Spec
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 BSOD when closing programs 0x00000050




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