Critical Error 100 in Event Viewer

I  have over 900 warnings- critical and errors in my event viewer since April

having read earlier replies to questions other people have posted I get the sense  just to ignore these errors but that doesn't "feel right"

Be grateful if anyone can put my mind at rest

Thank you

Critical 01/06/2015 07:05:39 Diagnostics-Performance 100 Boot Performance Monitoring

Log Name:      Microsoft-Windows-Diagnostics-Performance/Operational
Source:        Microsoft-Windows-Diagnostics-Performance
Date:          01/06/2015 07:05:39
Event ID:      100
Task Category: Boot Performance Monitoring
Level:         Critical
Keywords:      Event Log
User:          LOCAL SERVICE
Computer:      malcolm-PC
Windows has started up: 
     Boot Duration : 165331ms
     IsDegradation : false
     Incident Time (UTC) : ‎2015‎-‎06‎-‎01T06:02:36.734000400Z
Event Xml:
<Event xmlns="">
    <Provider Name="Microsoft-Windows-Diagnostics-Performance" Guid="{CFC18EC0-96B1-4EBA-961B-622CAEE05B0A}" />
    <TimeCreated SystemTime="2015-06-01T06:05:39.839684000Z" />
    <Correlation ActivityID="{032C2C40-F800-0000-E5E5-1F8F309CD001}" />
    <Execution ProcessID="1448" ThreadID="1460" />
    <Security UserID="S-1-5-19" />
    <Data Name="BootTsVersion">2</Data>
    <Data Name="BootStartTime">2015-06-01T06:02:36.734000400Z</Data>
    <Data Name="BootEndTime">2015-06-01T06:05:31.883670200Z</Data>
    <Data Name="SystemBootInstance">1085</Data>
    <Data Name="UserBootInstance">1030</Data>
    <Data Name="BootTime">165331</Data>
    <Data Name="MainPathBootTime">151680</Data>
    <Data Name="BootKernelInitTime">38</Data>
    <Data Name="BootDriverInitTime">9668</Data>
    <Data Name="BootDevicesInitTime">3335</Data>
    <Data Name="BootPrefetchInitTime">0</Data>
    <Data Name="BootPrefetchBytes">0</Data>
    <Data Name="BootAutoChkTime">0</Data>
    <Data Name="BootSmssInitTime">21943</Data>
    <Data Name="BootCriticalServicesInitTime">4171</Data>
    <Data Name="BootUserProfileProcessingTime">4098</Data>
    <Data Name="BootMachineProfileProcessingTime">2947</Data>
    <Data Name="BootExplorerInitTime">104515</Data>
    <Data Name="BootNumStartupApps">9</Data>
    <Data Name="BootPostBootTime">13651</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">3923</Data>
    <Data Name="BootPNPInitStartTimeMS">38</Data>
    <Data Name="BootPNPInitDuration">5968</Data>
    <Data Name="OtherKernelInitDuration">1139</Data>
    <Data Name="SystemPNPInitStartTimeMS">6925</Data>
    <Data Name="SystemPNPInitDuration">7035</Data>
    <Data Name="SessionInitStartTimeMS">14143</Data>
    <Data Name="Session0InitDuration">1272</Data>
    <Data Name="Session1InitDuration">1693</Data>
    <Data Name="SessionInitOtherDuration">18978</Data>
    <Data Name="WinLogonStartTimeMS">36087</Data>
    <Data Name="OtherLogonInitActivityDuration">4030</Data>
    <Data Name="UserLogonWaitDuration">9820</Data>


Question Info

Last updated June 16, 2019 Views 15,256 Applies to:


Thank you for providing us the opportunity to assist you.

As per the issue description you are getting an error Diagnostics-Performance 100 Boot Performance Monitoring. These are events on the computer which happened during logging in or while running certain application. You may safely ignore those messages.

If you don't want to ignore it and want to remove it you may try the methods provided below and see if it helps.

Method 1

First disconnect any external devices connected to the computer except the mouse and keyboard. Then check if all the physical connections to the computer are set correctly. If it is a laptop remove the laptop battery, wait for 5 minutes and then connect back the battery, check if it works.

Method 2

I would suggest you to boot the computer in safe mode and check if the issue persists.                                                                                                                                                                       

Step 1:

Refer to the link to boot in safe mode.

Advanced startup options (including safe mode).

Step 2:

If your computer works fine in safe mode, I would suggest you to perform clean boot.

Putting your system in Clean Boot state helps in identifying if any third party applications or startup items are causing the issue. You need to follow the steps from the article mentioned below to perform a Clean Boot.

How to perform a clean boot in Windows

Note: Refer "How to reset the computer to start normally after clean boot troubleshooting" to reset the computer to start as normal after troubleshooting.

Method 3

If issue still persist, I would suggest you to run a Startup repair to repair the corrupted startup system files and try to boot in normal mode. Refer to the steps provided below to run startup repair.

1. Restart your computer by clicking the Start, clicking the arrow next to the Shut Down, and then clicking Restart.

2. Press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears ( If the Windows logo appears, you'll need to try again by shutting down and restarting your computer).

3. On the Advanced Boot Options screen, use the arrow keys to highlight Repair your computer, and then press Enter.

4. Click the Operating system that you want to repair, and then click Next.

5. In the System Recovery Options dialog box, click Startup Repair.

Additional Information:

You may refer to the article mentioned below to know more about Startup repair.

Hope this would help. If issue still persists post back with current status of your computer and result of proposed suggestion, we will be happy to assist you.


Ramesh Kumar.

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