Hi,
Here's the report from WhoCrashed:
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System Information (local)
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computer name: USER-8CE73256DD
windows version: Windows XP Service Pack 3, 5.1, build: 2600
windows dir: C:\WINDOWS
CPU: GenuineIntel Pentium® Dual-Core CPU E5700 @ 3.00GHz Intel586, level: 6
2 logical processors, active mask: 3
RAM: 3184701440 total
VM: 2147352576, free: 2035605504
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Crash Dump Analysis
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Crash dump directory: C:\WINDOWS\Minidump
Crash dumps are enabled on your computer.
On Tue 6/7/2011 1:09:30 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060711-04.dmp
This was probably caused by the following module: aswsp.sys (aswSP+0x1F46D)
Bugcheck code: 0x10000050 (0xFFFFFFFFF2226444, 0x0, 0xFFFFFFFFB9E3572B, 0x2)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswsp.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! self protection module
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswsp.sys (avast! self protection module, AVAST Software).
Google query: aswsp.sys AVAST Software CUSTOM_ERROR
On Tue 6/7/2011 12:29:55 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060711-03.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0x349C)
Bugcheck code: 0x100000D1 (0x4, 0x2, 0x1, 0xFFFFFFFFBA1EB49C)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Tue 6/7/2011 12:25:38 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060711-02.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x74FD2)
Bugcheck code: 0x100000C5 (0x4, 0x2, 0x1, 0xFFFFFFFF8054BFD2)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft? Windows? Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.
On Tue 6/7/2011 12:21:33 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060711-01.dmp
This was probably caused by the following module: aswmon2.sys (aswMon2+0xA34)
Bugcheck code: 0x10000050 (0xFFFFFFFF9ACB92C0, 0x0, 0xFFFFFFFF804EF773, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswmon2.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! File System Filter Driver for Windows XP
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswmon2.sys (avast! File System Filter Driver for Windows XP, AVAST Software).
Google query: aswmon2.sys AVAST Software CUSTOM_ERROR
On Sun 6/5/2011 9:37:21 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060511-06.dmp
This was probably caused by the following module: ipnat.sys (ipnat+0x5868)
Bugcheck code: 0x100000D1 (0xFFFFFFFF99AB5D74, 0x2, 0x1, 0xFFFFFFFFA827D868)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\ipnat.sys
product: Microsoft? Windows? Operating System
company: Microsoft Corporation
description: IP Network Address Translator
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.
On Sun 6/5/2011 9:31:56 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060511-05.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0x9EF)
Bugcheck code: 0x1000000A (0x8, 0x2, 0x0, 0xFFFFFFFF8052D222)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Sun 6/5/2011 9:27:56 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060511-04.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0x9EF)
Bugcheck code: 0x1000000A (0x8, 0x2, 0x0, 0xFFFFFFFF8052D222)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Sun 6/5/2011 7:56:09 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060511-03.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0xC31)
Bugcheck code: 0x100000D1 (0xFFFFFFFF99B355C4, 0x2, 0x0, 0xFFFFFFFFA82C67E0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Sun 6/5/2011 5:04:49 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060511-02.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0x9EF)
Bugcheck code: 0x1000000A (0x8, 0x2, 0x0, 0xFFFFFFFF8052D222)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Sun 6/5/2011 2:39:45 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060511-01.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0x9EF)
Bugcheck code: 0x1000000A (0xFFFFFFFF9983E4C4, 0x2, 0x0, 0xFFFFFFFF8052D1F2)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Thu 6/2/2011 12:20:18 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060211-03.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0xE4496)
Bugcheck code: 0x10000050 (0xFFFFFFFF9AD16B68, 0x0, 0xFFFFFFFF805BB496, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft? Windows? Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.
On Thu 6/2/2011 12:16:55 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060211-02.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0xF8AC5)
Bugcheck code: 0x10000050 (0xFFFFFFFF9A258C30, 0x0, 0xFFFFFFFF805CFAC5, 0x0)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft? Windows? Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.
On Thu 6/2/2011 12:12:11 PM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini060211-01.dmp
This was probably caused by the following module: tcpip.sys (tcpip+0x28B7)
Bugcheck code: 0x100000D1 (0x0, 0x2, 0x1, 0xFFFFFFFFA8FC68B7)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\tcpip.sys
product: Microsoft? Windows? Operating System
company: Microsoft Corporation
description: TCP/IP Protocol Driver
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.
On Sun 5/29/2011 2:24:32 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini052911-02.dmp
This was probably caused by the following module: aswtdi.sys (aswTdi+0x9EF)
Bugcheck code: 0x1000000A (0x4, 0x2, 0x0, 0xFFFFFFFF8052D183)
Error: CUSTOM_ERROR
file path: C:\WINDOWS\system32\drivers\aswtdi.sys
product: avast! Antivirus System
company: AVAST Software
description: avast! TDI Filter Driver
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: aswtdi.sys (avast! TDI Filter Driver, AVAST Software).
Google query: aswtdi.sys AVAST Software CUSTOM_ERROR
On Sun 5/29/2011 1:58:12 AM GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\Mini052911-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x6EC2B)
Bugcheck code: 0x1000008E (0xFFFFFFFF80000004, 0xFFFFFFFF80545C2B, 0xFFFFFFFFB89D2BD8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft? Windows? Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.
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Conclusion
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18 crash dumps have been found and analyzed. Only 15 are included in this report. 10 third party drivers have been identified to be causing system crashes on your computer. It is strongly suggested that you check for updates for these drivers on their company websites. Click on the links below to search with Google for updates for these drivers:
aswsp.sys (avast! self protection module, AVAST Software)
aswtdi.sys (avast! TDI Filter Driver, AVAST Software)
aswmon2.sys (avast! File System Filter Driver for Windows XP, AVAST Software)
If no updates for these drivers are available, try searching with Google on the names of these drivers in combination the errors that have been reported for these drivers and include the brand and model name of your computer as well in the query. This often yields interesting results from discussions from users who have been experiencing similar problems.
Read the topic general suggestions for troubleshooting system crashes for more information.
Note that it's not always possible to state with certainty whether a reported driver is actually responsible for crashing your system or that the root cause is in another module. Nonetheless it's suggested you look for updates for the products that these drivers belong to and regularly visit Windows update or enable automatic updates for Windows. In case a piece of malfunctioning hardware is causing trouble, a search with Google on the bug check errors together with the model name and brand of your computer may help you investigate this further.
As for the Event Viewer Tool, when I tried to open the exe, there's an error message (the normal windows error message: "VEW.exe has encountered a problem and needs to close. We are sorry for the inconvenience.")
What should I do now? Thanks.