BSOD suddenly when browsing website,listen mp3 and open some pdf files

Hi Yapshin,

From your logs:

Code:

 
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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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Use !analyze -v to get detailed debugging information.
BugCheck D1, {693888a1, 2, 0, 8ae18509}
*** WARNING: Unable to verify timestamp for aswTdi.SYS
*** ERROR: Module load completed but symbols could not be loaded for aswTdi.SYS
*** WARNING: Unable to verify timestamp for pwipf6.sys
*** ERROR: Module load completed but symbols could not be loaded for pwipf6.sys
Probably caused by : pacer.sys ( pacer!PcFilterSendNetBufferLists+2e )
Followup: MachineOwner
---------
2: kd> !analyze -v
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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)

Uninstall Webroot Desktop Firewall as it is contributing to your BSOD's and may be
conflicting with AVAST:

Code:

 
Driver: pwipf6.sys
Refers to: Webroot Desktop Firewall 
Website: :ar: Support for Individuals & Families | Webroot

After you have removed the program, reboot and if you still experience BSOD's
then uninstall AVAST:

http://www.avast.com/uninstall-utility

As an alternative, please download and install:

Microsoft Security Essentials.
Recommended from a strict BSOD perspective, compatibility & stability
compared to other antiviruses/internet security software. It will use Windows Firewall.

   Note

Once downloaded, update and run a full system scan

Cheers

Dave

No problem. :)