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Windows 7: BSOD and freeze up problems

19 Oct 2010   #11
yowanvista

Windows 10 Pro x64, Arch Linux
 
 

Quote   Quote: Originally Posted by faz0222 View Post
CarlTR6 - Kaspersky removing tool could not detect KIS2011 so I've used the basic uninstaller and replaced KIS with Microsoft Security Essentials as you suggested.

lvpopflt.sys, LVUSBSta.sys, lvuvc.sys are all for my web cam which I could not find any Win7 drivers for so I've unplugged it for now and will buy a new one :-P
I can't seem to find any installation software for the cam, should I delete those 3x drivers by hand or just leave them ?

I've found 3x instances of the pcouffin.sys file and was able to rename one to pcouffin.bak in my C:\Users\Anthony\AppData\Roaming folder.
The 2x other instances are located in C:\Windows\System32\drivers and in C:\Windows\System32\DriverStore\FileRepository\pcouffin.inf_x86_neutral_3aabe1612ec941ae , those are "access denied", is there any way around it ?

wacommousefilter.sys - I've uninstalled my tablet driver, restarted and installed the latest version.

"See if you get anymore crashes. If you do, upload the dumps and we will go from there."
Ok, how do I locate the dumps ?

Thanks
You could try repairing Kaspersky


My System SpecsSystem Spec
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19 Oct 2010   #12
Lemur

Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
 
 

Faz, I didn't recommend disabling usb as a permanent solution. Just a way of isolating where the conflict is. Another option is to disconnect all unneeded usb devices, placing mouse and keyboard on front usbs, then back usbs.
My System SpecsSystem Spec
19 Oct 2010   #13
CarlTR6

Windows 7 Ultimate 32 bit
 
 

It is possible that this outdated driver, LVUSBSta.sys Fri May 11 19:40:49 2007, is responsible for USB crashing.
My System SpecsSystem Spec
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20 Oct 2010   #14
faz0222

Windows 7 Professional
 
 

CarlTR6 - lvpopflt.sys, LVUSBSta.sys, lvuvc.sys, pcouffin.sys - all renamed to .bak in the drivers folder
Should I update LVUSBSta.sys (and how) or just keep it as .bak ?

Lemur - I understand, will this work if I plug all my usb devices onto my external powered usb hub and them plug my hub into 1 usb at a time to try them out ?
Currently some devices disconnect randomly, my game controller stop working and just blink, my keyboard works every 2 seconds ... etc ...
It seems that the physical port I plug my hub is irrelevant since when a disconnect occur, only 1 device will disconnect, not all ... just a guess
Also, it seems to be 100% sure to get a usb disconnection on the initial cold boot, once I reboot for the 2nd time everything runs smoothly... weird ...

so far no freeze or BSOD but still lots of usb trouble ...
I'll continue to swap my hub and test each port slowly ,is there anything I can do ?

Thanks guys
My System SpecsSystem Spec
20 Oct 2010   #15
faz0222

Windows 7 Professional
 
 

my computer just froze while playing a game ... no dump file ... is there any way to find out what crashed ?
before you ask, my display drivers are up to date
My System SpecsSystem Spec
20 Oct 2010   #16
faz0222

Windows 7 Professional
 
 

another update ...
after restarting, my sound died, "No Audio Output device is installed".
I could not find any uninstaller, so I went to the device manager and uninstalled all the sound controllers marked "!", restarted and installed the updated Realtek HDaudio drivers from MSI.com (my motherboard), restarted again ... and still no audio device detected

Is that related to the 4x .sys driver I renamed .bak ?? I thought they were for the web cam !

Also, I have an "unknown device" listed in the device manager under USB controllers.
"Location Port_#0003.Hub_#0005"
"Windows has stopped this device because it has reported problems. (Code 43)"
So I've disabled it and nothing happened, is that a bad port ?

Any idea what's going on ?
My System SpecsSystem Spec
21 Oct 2010   #17
faz0222

Windows 7 Professional
 
 

I've tried to rename the 4x .bak files back to .sys one at a time to restore my audio.
The Realtech audio was successfully enabled after I renamed LVUSBSta.sys.
My System SpecsSystem Spec
21 Oct 2010   #18
CarlTR6

Windows 7 Ultimate 32 bit
 
 

Quote   Quote: Originally Posted by faz0222 View Post
CarlTR6 - lvpopflt.sys, LVUSBSta.sys, lvuvc.sys, pcouffin.sys - all renamed to .bak in the drivers folder
Should I update LVUSBSta.sys (and how) or just keep it as .bak ?

Quote   Quote: Originally Posted by faz0222 View Post
I've tried to rename the 4x .bak files back to .sys one at a time to restore my audio.
The Realtech audio was successfully enabled after I renamed LVUSBSta.sys.
Very good troubleshooting work. It is interesting that a camera driver affected your sound. Try to update LVUSBta.sys from this link: Downloads. Also try updating your sound card drivers. I assume your sound card is built in? If so, you can try updating all of your chipset drivers.
My System SpecsSystem Spec
21 Oct 2010   #19
faz0222

Windows 7 Professional
 
 

Just to confirm that my realtek HDaudio is using LVUSBSta.sys :

screenshot of Realtek using LVUSBSta.sys
My System SpecsSystem Spec
21 Oct 2010   #20
CarlTR6

Windows 7 Ultimate 32 bit
 
 

Quote   Quote: Originally Posted by faz0222 View Post
Just to confirm that my realtek HDaudio is using LVUSBSta.sys :

screenshot of Realtek using LVUSBSta.sys
Good research! Try to update the driver from this link: Realtek

If you cannot update the driver, I suggest that you purchase a new sound card that is certified compatible with Win 7. This driver is basically an XP driver and, remember, it was implicated as being part of the crash in some of your dumps.
My System SpecsSystem Spec
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 BSOD and freeze up problems




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