I checked around the Windows logs and found these (I uninstalled .NET, then reinstalled it twice, which may account for the number of error logs related to it; I put in some other logs I thought might be related, whether directly or indirectly, just in case):
Log Name: Application
Source: Microsoft-Windows-RestartManager
Date: 4/19/2011 12:19:56 PM
Event ID: 10010
Task Category: None
Level: Warning
Keywords:
User: EeePC-PC\Eee PC
Computer: EeePC-PC
Description:
Application ‘C:\Windows\Microsoft.NET\Framework\v4.0.30319\SetupCache\Client\Setup.exe’ (pid 1744) cannot be restarted - Application SID does not match Conductor SID…
Event Xml:
10010
0
3
0
0
0x8000000000000000
1113
Application
EeePC-PC
0
1744
C:\Windows\Microsoft.NET\Framework\v4.0.30319\SetupCache\Client\Setup.exe
Setup Installer
0
0
1
67108865
1
Log Name: Application
Source: ASP.NET 4.0.30319.0
Date: 4/19/2011 12:55:22 PM
Event ID: 1020
Task Category: Setup
Level: Warning
Keywords: Classic
User: N/A
Computer: EeePC-PC
Description:
Updates to the IIS metabase were aborted because IIS is either not installed or is disabled on this machine. To configure ASP.NET to run in IIS, please install or enable IIS and re-register ASP.NET using aspnet_regiis.exe /i.
Event Xml:
1020
3
1
0x80000000000000
1200
Application
EeePC-PC
Log Name: Application
Source: Microsoft-Windows-RestartManager
Date: 4/19/2011 6:20:16 PM
Event ID: 10010
Task Category: None
Level: Warning
Keywords:
User: EeePC-PC\Eee PC
Computer: EeePC-PC
Description:
Application ‘C:\Windows\Microsoft.NET\Framework\v4.0.30319\SetupCache\Extended\Setup.exe’ (pid 3900) cannot be restarted - Application SID does not match Conductor SID…
Event Xml:
10010
0
3
0
0
0x8000000000000000
1534
Application
EeePC-PC
0
3900
C:\Windows\Microsoft.NET\Framework\v4.0.30319\SetupCache\Extended\Setup.exe
Setup Installer
0
0
1
67108865
1
Log Name: Application
Source: ASP.NET 4.0.30319.0
Date: 4/19/2011 6:21:45 PM
Event ID: 1073
Task Category: Uninstall
Level: Warning
Keywords: Classic
User: N/A
Computer: EeePC-PC
Description:
Start unregistering ASP.NET (version 4.0.30319.0)
Event Xml:
1073
3
2
0x80000000000000
1536
Application
EeePC-PC
Start unregistering ASP.NET (version 4.0.30319.0)
Log Name: Application
Source: ASP.NET 4.0.30319.0
Date: 4/19/2011 6:22:03 PM
Event ID: 1073
Task Category: Uninstall
Level: Warning
Keywords: Classic
User: N/A
Computer: EeePC-PC
Description:
Finish unregistering ASP.NET (version 4.0.30319.0). Detailed unregistration logs can be found in C:\Users\EEEPC~1\AppData\Local\Temp\ASPNETSetup_00001.log
Event Xml:
1073
3
2
0x80000000000000
1540
Application
EeePC-PC
Finish unregistering ASP.NET (version 4.0.30319.0). Detailed unregistration logs can be found in C:\Users\EEEPC~1\AppData\Local\Temp\ASPNETSetup_00001.log
Log Name: Application
Source: Microsoft-Windows-RestartManager
Date: 4/19/2011 6:25:12 PM
Event ID: 10010
Task Category: None
Level: Warning
Keywords:
User: EeePC-PC\Eee PC
Computer: EeePC-PC
Description:
Application ‘C:\Windows\Microsoft.NET\Framework\v4.0.30319\SetupCache\Client\Setup.exe’ (pid 3632) cannot be restarted - Application SID does not match Conductor SID…
Event Xml:
10010
0
3
0
0
0x8000000000000000
1552
Application
EeePC-PC
0
3632
C:\Windows\Microsoft.NET\Framework\v4.0.30319\SetupCache\Client\Setup.exe
Setup Installer
0
0
1
67108865
1
Log Name: Application
Source: ASP.NET 4.0.30319.0
Date: 4/19/2011 6:43:40 PM
Event ID: 1020
Task Category: Setup
Level: Warning
Keywords: Classic
User: N/A
Computer: EeePC-PC
Description:
Updates to the IIS metabase were aborted because IIS is either not installed or is disabled on this machine. To configure ASP.NET to run in IIS, please install or enable IIS and re-register ASP.NET using aspnet_regiis.exe /i.
Event Xml:
1020
3
1
0x80000000000000
1607
Application
EeePC-PC
Log Name: System
Source: Service Control Manager
Date: 4/16/2011 7:59:10 AM
Event ID: 7023
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: EeePC-PC
Description:
The Security Center service terminated with the following error:
The process cannot access the file because it is being used by another process.
Event Xml:
7023
0
2
0
0
0x8080000000000000
2648
System
EeePC-PC
Security Center
%%32
(several logs like this:)
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 4/16/2011 3:31:20 PM
Event ID: 1014
Task Category: None
Level: Warning
Keywords:
User: NETWORK SERVICE
Computer: EeePC-PC
Description:
Name resolution for the name teredo.ipv6.microsoft.com timed out after none of the configured DNS servers responded.
Event Xml:
1014
0
3
0
0
0x4000000000000000
3123
System
EeePC-PC
teredo.ipv6.microsoft.com
16
02000035C0A800010000000000000000
Log Name: System
Source: Microsoft-Windows-DNS-Client
Date: 4/20/2011 8:20:48 AM
Event ID: 1014
Task Category: None
Level: Warning
Keywords:
User: NETWORK SERVICE
Computer: EeePC-PC
Description:
Name resolution for the name downloads.comodo.com timed out after none of the configured DNS servers responded.
Event Xml:
1014
0
3
0
0
0x4000000000000000
5719
System
EeePC-PC
downloads.comodo.com
16
02000035C0A800010000000000000000
Comodo logs and Diagnostics found nothing. 