#winlogon

Windows Event ID 1016 – WinLogon: Group Policy Application Failed

Event ID 1016 indicates Group Policy processing failures during user logon or computer startup, typically caused by network connectivity issues, domain controller problems, or corrupted policy files.

Windows Event ID 4004 – WinLogon: Interactive Logon Process Initialization

Event ID 4004 indicates the Windows interactive logon process has been initialized. This informational event fires during system startup when WinLogon prepares the interactive desktop environment for user authentication.

Windows Event ID 1704 – Winlogon: User Profile Service Failed

Event ID 1704 indicates the User Profile Service failed to load a user profile, preventing successful user logon and potentially causing profile corruption or access issues.

Windows Event ID 506 – Winlogon: Interactive Logon Process Registration

Event ID 506 indicates the Windows Winlogon service has registered an interactive logon process. This informational event tracks authentication provider initialization during system startup and user session management.