my father installed sevral critical updates on 8/19/12 about 9:30am pacific time when the whole system needed to be restored. i was not present until the last few min so i dont know exactly what happened but i got a report from the event viewer, need help making heads or tails of the report, help please? Log Name: Microsoft-Windows-Diagnostics-Performance/Operational Source: Microsoft-Windows-Diagnostics-Performance Date: 8/19/2012 9:38:05 AM Event ID: 100 Task Category: Boot Performance Monitoring Level: Critical Keywords: Event Log User: LOCAL SERVICE Computer: EDNA-PC Description: Windows has started up: Boot Duration : 168577ms IsDegradation : false Incident Time (UTC) : 2012-08-19T16:34:58.640400200Z 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>100</EventID> <Version>2</Version> <Level>1</Level> <Task>4002</Task> <Opcode>34</Opcode> <Keywords>0x8000000000010000</Keywords> <TimeCreated SystemTime="2012-08-19T16:38:05.870949700Z" /> <EventRecordID>530</EventRecordID> <Correlation ActivityID="{00000000-C8C4-0000-AA5C-9192287ECD01}" /> <Execution ProcessID="1484" ThreadID="1496" /> <Channel>Microsoft-Windows-Diagnostics-Performance/Operational</Channel> <Computer>EDNA-PC</Computer> <Security UserID="S-1-5-19" /> </System> <EventData> <Data Name="BootTsVersion">2</Data> <Data Name="BootStartTime">2012-08-19T16:34:58.640400200Z</Data> <Data Name="BootEndTime">2012-08-19T16:38:02.314143400Z</Data> <Data Name="SystemBootInstance">30</Data> <Data Name="UserBootInstance">25</Data> <Data Name="BootTime">168577</Data> <Data Name="MainPathBootTime">98477</Data> <Data Name="BootKernelInitTime">29</Data> <Data Name="BootDriverInitTime">11276</Data> <Data Name="BootDevicesInitTime">5395</Data> <Data Name="BootPrefetchInitTime">44584</Data> <Data Name="BootPrefetchBytes">258879488</Data> <Data Name="BootAutoChkTime">0</Data> <Data Name="BootSmssInitTime">40424</Data> <Data Name="BootCriticalServicesInitTime">896</Data> <Data Name="BootUserProfileProcessingTime">874</Data> <Data Name="BootMachineProfileProcessingTime">0</Data> <Data Name="BootExplorerInitTime">13741</Data> <Data Name="BootNumStartupApps">6</Data> <Data Name="BootPostBootTime">70100</Data> <Data Name="BootIsRebootAfterInstall">false</Data> <Data Name="BootRootCauseStepImprovementBits">0</Data> <Data Name="BootRootCauseGradualImprovementBits">0</Data> <Data Name="BootRootCauseStepDegradationBits">0</Data> <Data Name="BootRootCauseGradualDegradationBits">0</Data> <Data Name="BootIsDegradation">false</Data> <Data Name="BootIsStepDegradation">false</Data> <Data Name="BootIsGradualDegradation">false</Data> <Data Name="BootImprovementDelta">0</Data> <Data Name="BootDegradationDelta">0</Data> <Data Name="BootIsRootCauseIdentified">false</Data> <Data Name="OSLoaderDuration">3608</Data> <Data Name="BootPNPInitStartTimeMS">29</Data> <Data Name="BootPNPInitDuration">5443</Data> <Data Name="OtherKernelInitDuration">4673</Data> <Data Name="SystemPNPInitStartTimeMS">8431</Data> <Data Name="SystemPNPInitDuration">11228</Data> <Data Name="SessionInitStartTimeMS">21345</Data> <Data Name="Session0InitDuration">30966</Data> <Data Name="Session1InitDuration">2394</Data> <Data Name="SessionInitOtherDuration">7062</Data> <Data Name="WinLogonStartTimeMS">61769</Data> <Data Name="OtherLogonInitActivityDuration">22090</Data> <Data Name="UserLogonWaitDuration">7025</Data> </EventData> </Event>

What does WindowsUpdate.log file says? Any trace in Event log(s)? If nothing has bee found in WindowsUpdate.log, you can boot into Safe Mode and return to previous restore point. Rgds Milos