Windows System Event: 4621

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System Event » Windows System Event: 4621

Event ID 4621: Administrator recovered system from CrashOnAuditFail.

  • This event is logged after a system reboots following CrashOnAuditFail. It generates when CrashOnAuditFail = 2.
  • Administrator recovered system from CrashOnAuditFail. Users who are not administrators will now be allowed to log on.Some auditable activity might not have been recorded.
Category System
Subcategory Security change

This event logs the following information:

Value of CrashOnAuditFail: %1

Reasons to monitor this event:

  • We recommend triggering an alert for any occurrence of this event.
  • The event shows that the system halted because it could not record an auditable event in the Security Log, as described in CrashOnAuditFail.
  • If your computers don’t have the CrashOnAuditFail flag enabled, then this event will be a sign that some settings are not set to baseline settings or were changed.

Event 4621 applies to the following operating systems:

  • Windows 2008 R2 and 7
  • Windows 2012 R2 and 8.1
  • Windows 2016 and 10

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