http://blogs.technet.com/gpguru/pages/troubleshooting-group-policy-using-event-logs.aspxGroup Policy Event Log Improvements Windows Vista provides a new centralized event logging system and Event Viewer. Features such as cross-log querying, scheduled task integration, and page support in filtered views make the Event Viewer the ideal toolen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/gpguru/pages/troubleshooting-group-policy-using-event-logs.aspx#3224597Thu, 09 Apr 2009 20:24:11 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3224597JoeC<p>The computer name on this notice is unknown to me. &nbsp;How can I find out how to block this other computer from my computer....Thanks &nbsp;JoeC</p> <p>Log Name: &nbsp; &nbsp; &nbsp;Microsoft-Windows-GroupPolicy/Operational</p> <p>Source: &nbsp; &nbsp; &nbsp; &nbsp;Microsoft-Windows-GroupPolicy</p> <p>Date: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2/22/2008 7:11:01 AM</p> <p>Event ID: &nbsp; &nbsp; &nbsp;8001</p> <p>Task Category: None</p> <p>Level: &nbsp; &nbsp; &nbsp; &nbsp; Information</p> <p>Keywords: &nbsp; &nbsp; &nbsp;</p> <p>User: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;SYSTEM</p> <p>Computer: &nbsp; &nbsp; &nbsp;WIN-RI6Z3BLOBTK</p> <p>Description:</p> <p>Completed user logon policy processing for WIN-RI6Z3BLOBTK\Administrator in 0 seconds.</p> <p>Event Xml:</p> <p>&lt;Event xmlns=&quot;<a rel="nofollow" target="_new" href="http://schemas.microsoft.com/win/2004/08/events/event&quot;&gt;">http://schemas.microsoft.com/win/2004/08/events/event&quot;&gt;</a></p> <p> &nbsp;&lt;System&gt;</p> <p> &nbsp; &nbsp;&lt;Provider Name=&quot;Microsoft-Windows-GroupPolicy&quot; Guid=&quot;{aea1b4fa-97d1-45f2-a64c-4d69fffd92c9}&quot; /&gt;</p> <p> &nbsp; &nbsp;&lt;EventID&gt;8001&lt;/EventID&gt;</p> <p> &nbsp; &nbsp;&lt;Version&gt;0&lt;/Version&gt;</p> <p> &nbsp; &nbsp;&lt;Level&gt;4&lt;/Level&gt;</p> <p> &nbsp; &nbsp;&lt;Task&gt;0&lt;/Task&gt;</p> <p> &nbsp; &nbsp;&lt;Opcode&gt;2&lt;/Opcode&gt;</p> <p> &nbsp; &nbsp;&lt;Keywords&gt;0x4000000000000000&lt;/Keywords&gt;</p> <p> &nbsp; &nbsp;&lt;TimeCreated SystemTime=&quot;2008-02-22T13:11:01.154Z&quot; /&gt;</p> <p> &nbsp; &nbsp;&lt;EventRecordID&gt;22&lt;/EventRecordID&gt;</p> <p> &nbsp; &nbsp;&lt;Correlation ActivityID=&quot;{9B9B8490-C3A9-4708-A4AC-E5CA27C30D20}&quot; /&gt;</p> <p> &nbsp; &nbsp;&lt;Execution ProcessID=&quot;960&quot; ThreadID=&quot;2396&quot; /&gt;</p> <p> &nbsp; &nbsp;&lt;Channel&gt;Microsoft-Windows-GroupPolicy/Operational&lt;/Channel&gt;</p> <p> &nbsp; &nbsp;&lt;Computer&gt;WIN-RI6Z3BLOBTK&lt;/Computer&gt;</p> <p> &nbsp; &nbsp;&lt;Security UserID=&quot;S-1-5-18&quot; /&gt;</p> <p> &nbsp;&lt;/System&gt;</p> <p> &nbsp;&lt;EventData&gt;</p> <p> &nbsp; &nbsp;&lt;Data Name=&quot;PolicyElaspedTimeInSeconds&quot;&gt;0&lt;/Data&gt;</p> <p> &nbsp; &nbsp;&lt;Data Name=&quot;ErrorCode&quot;&gt;0&lt;/Data&gt;</p> <p> &nbsp; &nbsp;&lt;Data Name=&quot;PrincipalSamName&quot;&gt;WIN-RI6Z3BLOBTK\Administrator&lt;/Data&gt;</p> <p> &nbsp; &nbsp;&lt;Data Name=&quot;IsMachine&quot;&gt;false&lt;/Data&gt;</p> <p> &nbsp; &nbsp;&lt;Data Name=&quot;IsConnectivityFailure&quot;&gt;false&lt;/Data&gt;</p> <p> &nbsp;&lt;/EventData&gt;</p> <p>&lt;/Event&gt;</p>