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220-802 · Question #305

A new application is installed which adds three new services to a customer's PC. The customer asks for help, because the new application will not start. A technician investigates and finds that one…

The correct answer is C. Log files for the new application D. Event Viewer. When a Windows service fails to start, the application's own log files and the Windows Event Viewer are the primary sources for detailed error information.

Hardware and network troubleshooting

Question

A new application is installed which adds three new services to a customer's PC. The customer asks for help, because the new application will not start. A technician investigates and finds that one of the services has failed to start. They attempt to manually start the service but it fails. Where should the technician look NEXT for more information? (Select TWO).

Options

  • ATask Manager
  • BSystem registry
  • CLog files for the new application
  • DEvent Viewer
  • E%SystemDir%\System32\Drivers

How the community answered

(29 responses)
  • A
    7% (2)
  • B
    17% (5)
  • C
    69% (20)
  • E
    7% (2)

Why each option

When a Windows service fails to start, the application's own log files and the Windows Event Viewer are the primary sources for detailed error information.

ATask Manager

Task Manager displays currently running processes and resource usage but does not provide error details or logs for services that failed to start.

BSystem registry

The system registry stores configuration values but does not contain diagnostic event logs or error messages explaining a service startup failure.

CLog files for the new applicationCorrect

Application-specific log files often contain verbose error messages written by the application itself, which can pinpoint why a service dependency or initialization step failed. Event Viewer (D) records Windows service control manager errors and application event logs, providing system-level detail about why the service could not start. Together these two sources give the most complete picture of the failure.

DEvent ViewerCorrect
E%SystemDir%\System32\Drivers

The %SystemDir%\System32\Drivers folder contains kernel-mode driver files and is not a source of application service error logs or diagnostic information.

Concept tested: Windows service startup failure troubleshooting using logs

Source: https://learn.microsoft.com/en-us/windows/client-management/windows-event-log

Topics

#Windows services#Event Viewer#application logs#service failure

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