Vista Shut down issues

I'm running an HP dv7-1270us laptop with Vista 64. The last several
weeks I've been experiencing very slow (up to 4 minutes) shutdown times.
I went into the event log files and am going to paste the last two
shutdown event logs below. It would appear that something is causing
the "shutdownkerneltime" is lagging as the bulk of the shutdown sequence
builds up there (81627ms out of the total 89918:

Log Name: Microsoft-Windows-Diagnostics-Performance/Operational
Source: Microsoft-Windows-Diagnostics-Performance
Date: 2/18/2010 6:46:09 AM
Event ID: 200
Task Category: Shutdown Performance Monitoring
Level: Error
Keywords: Event Log
User: LOCAL SERVICE
Computer: Frjoemack-PC
Description:
Windows has shutdown:
Shutdown Duration : 89918ms
IsDegradation : false
Incident Time (UTC) : 2/18/2010 1:47:17 AM
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Diagnostics-Performance"
Guid="{cfc18ec0-96b1-4eba-961b-622caee05b0a}" />
<EventID>200</EventID>
<Version>1</Version>
<Level>2</Level>
<Task>4007</Task>
<Opcode>40</Opcode>
<Keywords>0x8000000000010000</Keywords>
<TimeCreated SystemTime="2010-02-18T11:46:09.372Z" />
<EventRecordID>3844</EventRecordID>
<Correlation ActivityID="{00000001-0000-0000-9B70-5F538FB0CA01}" />
<Execution ProcessID="2036" ThreadID="2600" />

<Channel>Microsoft-Windows-Diagnostics-Performance/Operational</Channel>
<Computer>Frjoemack-PC</Computer>
<Security UserID="S-1-5-19" />
</System>
<EventData>
<Data Name="ShutdownTsVersion">1</Data>
<Data Name="ShutdownStartTime">2010-02-18T01:47:17.858Z</Data>
<Data Name="ShutdownEndTime">2010-02-18T01:48:47.777Z</Data>
<Data Name="ShutdownTime">89918</Data>
<Data Name="ShutdownUserSessionTime">5182</Data>
<Data Name="ShutdownUserPolicyTime">10</Data>
<Data Name="ShutdownUserProfilesTime">1054</Data>
<Data Name="ShutdownSystemSessionsTime">3108</Data>
<Data Name="ShutdownPreShutdownNotificationsTime">219</Data>
<Data Name="ShutdownServicesTime">2705</Data>
<Data Name="ShutdownKernelTime">81627</Data>
<Data Name="ShutdownRootCauseStepImprovementBits">0</Data>
<Data Name="ShutdownRootCauseGradualImprovementBits">0</Data>
<Data Name="ShutdownRootCauseStepDegradationBits">0</Data>
<Data Name="ShutdownRootCauseGradualDegradationBits">0</Data>
<Data Name="ShutdownIsDegradation">false</Data>
<Data Name="ShutdownTimeChange">0</Data>
</EventData>
</Event>

Log Name: Microsoft-Windows-Diagnostics-Performance/Operational
Source: Microsoft-Windows-Diagnostics-Performance
Date: 2/17/2010 10:09:28 AM
Event ID: 200
Task Category: Shutdown Performance Monitoring
Level: Error
Keywords: Event Log
User: LOCAL SERVICE
Computer: Frjoemack-PC
Description:
Windows has shutdown:
Shutdown Duration : 90191ms
IsDegradation : false
Incident Time (UTC) : 2/17/2010 3:05:00 PM
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Diagnostics-Performance"
Guid="{cfc18ec0-96b1-4eba-961b-622caee05b0a}" />
<EventID>200</EventID>
<Version>1</Version>
<Level>2</Level>
<Task>4007</Task>
<Opcode>40</Opcode>
<Keywords>0x8000000000010000</Keywords>
<TimeCreated SystemTime="2010-02-17T15:09:28.571Z" />
<EventRecordID>3838</EventRecordID>
<Correlation ActivityID="{00000001-0000-0000-3E28-C68DE2AFCA01}" />
<Execution ProcessID="1920" ThreadID="2008" />

<Channel>Microsoft-Windows-Diagnostics-Performance/Operational</Channel>
<Computer>Frjoemack-PC</Computer>
<Security UserID="S-1-5-19" />
</System>
<EventData>
<Data Name="ShutdownTsVersion">1</Data>
<Data Name="ShutdownStartTime">2010-02-17T15:05:00.301Z</Data>
<Data Name="ShutdownEndTime">2010-02-17T15:06:30.493Z</Data>
<Data Name="ShutdownTime">90191</Data>
<Data Name="ShutdownUserSessionTime">4683</Data>
<Data Name="ShutdownUserPolicyTime">2</Data>
<Data Name="ShutdownUserProfilesTime">909</Data>
<Data Name="ShutdownSystemSessionsTime">3317</Data>
<Data Name="ShutdownPreShutdownNotificationsTime">212</Data>
<Data Name="ShutdownServicesTime">2778</Data>
<Data Name="ShutdownKernelTime">82190</Data>
<Data Name="ShutdownRootCauseStepImprovementBits">24</Data>
<Data Name="ShutdownRootCauseGradualImprovementBits">8</Data>
<Data Name="ShutdownRootCauseStepDegradationBits">0</Data>
<Data Name="ShutdownRootCauseGradualDegradationBits">0</Data>
<Data Name="ShutdownIsDegradation">false</Data>
<Data Name="ShutdownTimeChange">0</Data>
</EventData>
</Event>


--
JoeMack