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A specified logon session does not exist. It may already have been terminated error

jamie younkin 320 Reputation points
2026-04-07T15:24:27.8666667+00:00

Today I got this error in event viewer and I don't know what this is for: 'packageChanges-1' failed for S-1-5-18. Error: 'A specified logon session does not exist. It may already have been terminated.' (0.0158355 seconds)

Is there a way to fix this if it keeps popping up again or what is the best way to fix this?

Windows for home | Windows 11 | Performance and system failures
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  1. Kapil Arya 37,576 Reputation points Volunteer Moderator
    2026-04-07T17:10:38.6866667+00:00

    Is your system connected to work or school account?

    Active Directory Authentication Library (ADAL) may sometime contribute to this issue.


  2. Q&A Assist
    2026-04-07T15:24:41.7+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The message “A specified logon session does not exist. It may already have been terminated” is a generic Windows security/logon error that appears when Windows or an application tries to use credentials or a logon context that is no longer valid or cannot be stored/used in the current context.

    In similar cases:

    • System Center Operations Manager agent deployment fails with this same error when credentials cannot be stored under the LocalSystem account or are blocked by policy.
    • SSL certificate operations can fail with the same text when authentication data passed through RPC is invalid or truncated.

    For a home Windows 11 system where this appears occasionally in Event Viewer and there are no visible problems (no app crashes, no login failures, no features broken), this typically indicates a transient internal failure rather than a critical issue.

    Practical steps if it keeps appearing and there are symptoms (apps failing to install/update, services not starting, etc.):

    1. Ensure Windows is fully updated (Settings → Windows Update → Check for updates), as some logon-session–related issues are fixed by updates.
    2. Identify the source:
      • In Event Viewer, open the event and check the Source, Event ID, and General/Details tabs to see which component is logging packageChanges-1 for S-1-5-18 (the LocalSystem account).
      • If it is tied to a specific app or service, repair or reinstall that app.
    3. If the error is tied to certificate or HTTP/SSL configuration (for example, when binding certificates), review and reapply the configuration, as similar errors occur when authentication data is mishandled.
    4. If there are no functional problems and only an occasional log entry, it is safe to monitor and ignore. Event Viewer logs many low-level issues that do not require action.

    If the error starts to correlate with real symptoms (failed logons, services not starting, or repeated failures during a specific operation), capture the full event details (source, event ID, and any related error codes) and troubleshoot that specific component.


    References:

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