Windows DISM servicing log
DISM.exe and DismApi sessions (dism.log). Surfaces CheckHealth/ScanHealth/RestoreHealth commands, CBS session markers, reboot-pending state, and API failures. Session boilerplate is dropped at collection; routine narration that is kept lands at Debug. Query at severity >= Info for normal investigation, and drop to Verbose or Debug inside a known servicing window.
Feed id: win.servicing.dism.
Channels
This feed reads a servicing log file on the endpoint rather than an event channel. Each reason below names the file it was read from.
Curated reasons
Severity here is what the condition is worth to the person holding the ticket, not the level the provider stated for itself.
| Reason | Ticket class | Severity |
|---|---|---|
win_dism_command_failed | patching | Info |
win_dism_feature_change_failed | patching | Info |
win_dism_health_command_run | patching | Info |
win_dism_reboot_required | patching | Info |
win_dism_source_files_missing | patching | Notice |
win_dism_command_failed
A DISM command reported failure.
Severity: Info
Impact: Depends on the command. Read the servicing outcome from CBS rather than from the tool exit.
Log file: C:\Windows\Logs\DISM\dism.log
Fields it can set: win.servicing.dism.component
win_dism_feature_change_failed
A Windows optional feature could not be enabled or disabled.
Severity: Info
Impact: That feature is not in the requested state.
Log file: C:\Windows\Logs\DISM\dism.log
Fields it can set: win.servicing.dism.component
win_dism_health_command_run
A DISM health or repair command was run on this machine.
Severity: Info
Impact: None. This records an action, not a fault.
Log file: C:\Windows\Logs\DISM\dism.log
Fields it can set: win.servicing.dism.component
win_dism_reboot_required
A DISM change needs a reboot to take effect.
Severity: Info
Impact: The change applies after the next reboot.
Log file: C:\Windows\Logs\DISM\dism.log
Fields it can set: win.servicing.dism.component
win_dism_source_files_missing
A DISM operation could not find the source files it needed.
Severity: Notice
Impact: Repair or install will keep failing until a valid source is supplied.
Log file: C:\Windows\Logs\DISM\dism.log
Fields it can set: win.servicing.dism.component
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