Windows 7: what do these errors mean?

Log Name: System
Source: Microsoft-Windows-Wininit
Date: 4/21/2012 11:22:50 AM
Event ID: 11
Task Category: None
Level: Warning
Keywords:
User: SYSTEM
Computer: Owner-PC
Description:
Custom dynamic link libraries are being loaded for every application. The system administrator should review the list of libraries to ensure they are related to trusted applications.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Wininit" Guid="{206F6DEA-D3C5-4D10-BC72-989F03C8B84B}" />
<EventID>11</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x4000000000000000</Keywords>
<TimeCreated SystemTime="2012-04-21T18:22:50.873299200Z" />
<EventRecordID>69593</EventRecordID>
<Correlation />
<Execution ProcessID="528" ThreadID="548" />
<Channel>System</Channel>
<Computer>Owner-PC</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="StringCount">0</Data>
<Data Name="String">
</Data>
</EventData>
</Event>

Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 4/21/2012 10:04:24 AM
Event ID: 5157
Task Category: Filtering Platform Connection
Level: Information
Keywords: Audit Failure
User: N/A
Computer: Owner-PC
Description:
The Windows Filtering Platform has blocked a connection.

Application Information:
Process ID: 356
Application Name: \device\harddiskvolume2\windows\system32\svchost.exe

Network Information:
Direction: Inbound
Source Address: 92.242.144.50
Source Port: 0
Destination Address: 192.168.1.113
Destination Port: 0
Protocol: 0

Filter Information:
Filter Run-Time ID: 71974
Layer Name: Receive/Accept
Layer Run-Time ID: 44
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
<EventID>5157</EventID>
<Version>1</Version>
<Level>0</Level>
<Task>12810</Task>
<Opcode>0</Opcode>
<Keywords>0x8010000000000000</Keywords>
<TimeCreated SystemTime="2012-04-21T17:04:24.258625000Z" />
<EventRecordID>128661</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="64" />
<Channel>Security</Channel>
<Computer>Owner-PC</Computer>
<Security />
</System>
<EventData>
<Data Name="ProcessID">356</Data>
<Data Name="Application">\device\harddiskvolume2\windows\system32\svchost.exe</Data>
<Data Name="Direction">%%14592</Data>
<Data Name="SourceAddress">92.242.144.50</Data>
<Data Name="SourcePort">0</Data>
<Data Name="DestAddress">192.168.1.113</Data>
<Data Name="DestPort">0</Data>
<Data Name="Protocol">0</Data>
<Data Name="FilterRTID">71974</Data>
<Data Name="LayerName">%%14610</Data>
<Data Name="LayerRTID">44</Data>
<Data Name="RemoteUserID">S-1-0-0</Data>
<Data Name="RemoteMachineID">S-1-0-0</Data>
</EventData>
</Event>

is normal to have like 100 errors in tthe events? a day? lol or is this a sign of bad mother board or windows?

These are not errors, just information and warnings. These are normal. Is there a reason why you are concerned? Is your system performance taking a hit? Any crashing?