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Search Advanced Ex: logon failure -"account disabled" -"LogType:Windows Event Log" 1 event(s) found in the alternate event classification Events by Business Needs Found categories (1 - Events, 0 - Folders): EventID 4771 - Kerberos pre-authentication failed. Indicates that the kerberos pre-authentication was failed. The reason is in the failure code, see here. In other words, it indicates a user/computer account failed initial logon. Refer to the link f... Operating System->Microsoft Windows->Built-in logs->Windows 2008 or higher->Security Log->Account Logon->Kerberos Authentication Service->EventID 4771 - Kerberos pre-authentication failed.