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Event ID 258 from Microsoft-Windows-Defrag is recorded in the Application event logs every 2 hours on all the machines in your environment.
When you launch Disk Defragmentor, a warning is shown:
Disk Defragmenter was scheduled using another program
Disk Defragmenter is currently scheduled using customized settings created by another program. Before you can modify the schedule,
you must remove the customized settings.
Disable the Logical Disk Monitoring in the SCOM Base OS Management Pack to stop automatic Defrag Analysis.
When this problem occurs, you may receive one or more of the following events in the event log:
Log Name: Application
Source: Microsoft-Windows-Defrag
Date: <date> <time>
Event ID: 258
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: <hostname>
Description:
The disk defragmenter successfully completed analysis on (C:)
Log Name: Application
Source: Microsoft-Windows-Defrag
Date: <date> <time>
Event ID: 258
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: <hostname>
Description:
The disk defragmenter successfully completed analysis on Page File (P:)
Keywords: vkball, kb