Windows Vista Error Event ID 11,Failed extract of third-party root list ?

[xbobx]

I get this error that shows regular in the "event viewer" how do i fix
it,or is it nothing to be concerned about?

Log Name: Application
Source: Microsoft-Windows-CAPI2
Date: 02/02/2008 09:21:07
Event ID: 11
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: acer-da9cacdb16
Description:
Failed extract of third-party root list from auto update cab at:
<http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab>
with error: A required certificate is not within its validity period when
verifying against the current system clock or the timestamp in the signed
file.
..
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-CAPI2"
Guid="{5bbca4a8-b209-48dc-a8c7-b23d3e5216fb}"
EventSourceName="Microsoft-Windows-CAPI2" />
<EventID Qualifiers="49154">11</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2008-02-02T09:21:07.000Z" />
<EventRecordID>126001</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>acer-da9cacdb16</Computer>
<Security />
</System>
<EventData>

<Data>http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab</Data>
<Data>A required certificate is not within its validity period when
verifying against the current system clock or the timestamp in the signed
file.
</Data>
</EventData>
</Event>