Windows 7: kernel-event tracing error and warnings

hello all just found these errors and warnings on my event viewer they date from the day i purchased my laptop and are still happening PLEASE can anyone tell me what they mean and more important are they damaging in any way?
b.t.w.i am a novice at computers but more than willing to learn. ANY HELP GREATLY APPRECIATED


Log Name: Microsoft-Windows-Kernel-EventTracing/Admin
Source: Microsoft-Windows-Kernel-EventTracing
Date: 21/06/2011 05:56:31
Event ID: 3
Task Category: Session
Level: Error
Keywords: Session
User: SYSTEM
Computer: PinkDream-VAIO
Description:
Session "ReadyBoot" stopped due to the following error: 0xC0000188
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-EventTracing" Guid="{B675EC37-BDB6-4648-BC92-F3FDC74D3CA2}" />
<EventID>3</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>2</Task>
<Opcode>14</Opcode>
<Keywords>0x8000000000000010</Keywords>
<TimeCreated SystemTime="2011-06-21T04:56:31.148678200Z" />
<EventRecordID>650</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="164" />
<Channel>Microsoft-Windows-Kernel-EventTracing/Admin</Channel>
<Computer>PinkDream-VAIO</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="SessionName">ReadyBoot</Data>
<Data Name="FileName">C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl</Data>
<Data Name="ErrorCode">3221225864</Data>
<Data Name="LoggingMode">0</Data>
</EventData>
</Event>



I don't know what any of it means but i am WORRIED
thanking you all
nana58