This is not meant as a replacement for Reventon's good advice, only something to add on.
I see you are having a lot of network errors. Try changing your DNS servers to 8.8.8.8 and 8.8.4.4. That is Google DNS, just a change from your current DNS server in case that is causing problems.
Code:
Event[3]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-07T17:57:27.560
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name www.sevenforums.com timed out after none of the configured DNS servers responded.
Event[120]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-07T17:35:00.969
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name photos-f.ak.fbcdn.net timed out after none of the configured DNS servers responded.
Event[261]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-07T09:53:41.649
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name en.wikipedia.org timed out after none of the configured DNS servers responded.
Event[449]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-06T18:36:09.853
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name windows.bigresource.com timed out after none of the configured DNS servers responded.
Event[580]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-06T18:24:46.156
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name www.theacerguy.com timed out after none of the configured DNS servers responded.
Event[685]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-06T17:03:12.882
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name mobile.wcg.com timed out after none of the configured DNS servers responded.
Event[795]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-06T15:36:10.272
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name photos-b.ak.fbcdn.net timed out after none of the configured DNS servers responded.
Event[1100]:
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 2010-09-05T19:48:39.593
Event ID: 1014
Task: N/A
Level: Warning
Opcode: Info
Keyword: N/A
User: S-1-5-20
User Name: NT AUTHORITY\NETWORK SERVICE
Computer: KMV
Description:
Name resolution for the name twitter.com timed out after none of the configured DNS servers responded.
and many many more.
One BSOD blames ndis.sys, adding to my suspicion.
Code:
BugCheck 10E, {1f, fffff8a00b376e50, 0, 722b1}
Probably caused by : dxgmms1.sys ( dxgmms1!VIDMM_GLOBAL::ReferenceAllocationForSubmission+148 )
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BugCheck 3D, {fffff8800767c140, 0, 0, fffff880014b4b26}
Probably caused by : ndis.sys ( ndis!NdisMQueueDpc+16 )
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BugCheck 24, {1904fb, fffff88009441488, fffff88009440cf0, fffff80002c7b905}
Probably caused by : Ntfs.sys ( Ntfs!NtfsCommonWrite+2fc )
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BugCheck 34, {50830, fffff88001fa0818, fffff88001fa0080, fffff8000209446c}
Probably caused by : ntkrnlmp.exe ( nt!CcUnmapVacbArray+bc )
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BugCheck 3B, {c0000005, fffff80002d882f3, fffff88007d19d50, 0}
Probably caused by : memory_corruption
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Remove AVG with this tool: http://download.avg.com/filedir/util...removerx64.exe
Replace it with MSE: http://www.microsoft.com/security_essentials