Event ID 4775

An account could not be mapped for logon

An account could not be mapped for logon.

Authentication Package: %1
Account Name:           %2


It appears that this event never occurs.

Microsoft Documentation

Event ID - 4775


Lookup Audit Policy Configuration Settings

C:\> AuditPol.exe /get /subcategory:"Credential Validation"
How to enable Windows Auditing
Recommended Audit Policy

Operating Systems:
Windows VistaWindows 2008Windows 2008 R2Windows 7Windows 2012Windows 2012 R2Windows 8Windows 8.1Windows 10Windows 11Windows 2016Windows 2019Windows 2022Windows 2025

Tags:
Domain ControllerAudit Failure
Audit Category:
Logon/Logoff

Audit Subcategory:
Credential Validation
Legacy Events:
679

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