Table of Contents Applies ToCauseDetailsBoot Performance Events 100-110ResolutionAdditional Resources
Windows Server 2008, Windows 7
Event ID 100 indicates Windows has started up and degradation has been detected.
While occasional degradation is normal, due to software or hardware device driver updates, if you determine that a particular device or application event is being logged on a regular basis and/or results in a continuation of boot time degradation,
chances are that there is a problem. Check with your hardware or software provider to obtain updated device drivers or software. You may also need to trace the boot process to determine the specifics on what is causing performance issues. See "Tools
for Troubleshooting Slow Boot and Slow Logon" for more information.
The Event Viewer in Windows Server 2008 and Windows 7 includes a new category of
event logs called Applications and Services Logs, which includes a host of Windows Performance Diagnostic subcategories which track information such as boot time, standby, hibernate
and system shutdown. The task category of boot performance spans the event range .detailed below.
Windows has started up
This application took longer than usual to start up, resulting in a performance degradation in the system start up process.
This driver took longer to initialize, resulting in a performance
degradation in the system start up process.
This startup service took longer than expected to start up, resulting in a performance degradation in the system start up process.
The background optimization operation took longer to complete.
The application of machine policy caused a slow down in the system start up process.
The application of user policy caused a slow down in the system start up process.
This device took longer to initialize, resulting in a performance degradation in the system start up process.
Session manager initialization caused a slow down in the startup process.
Investigate the root cause of devices or applications which impact slow system boot issues.
Using Windows Performance Analysis Tools
Windows Performance Tools are designed for analysis of a wide range of performance problems including application start times, boot issues, deferred procedure calls and interrupt activity
(DPCs and ISRs), system responsiveness issues, application resource usage, and interrupt storms.