What is logonfailure-4625 means

An account failed to log on.

Security ID:  NULL SID
Account Name:  –
Account Domain:  –
Logon ID:  0x0
Logon Type:  3
Account For Which Logon Failed:
Security ID:  NULL SID
Account Name:  asdf
Account Domain:
Failure Information:
Failure Reason:  Unknown user name or bad password.
Status:   0xc000006d
Sub Status:  0xc0000064
Process Information:
Caller Process ID: 0x0
Caller Process Name: –
Network Information:
Workstation Name:
Source Network Address:
Source Port:  53176
Detailed Authentication Information:
Logon Process:  NtLmSsp
Authentication Package: NTLM
Transited Services: –
Package Name (NTLM only): –
Key Length:  0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.

•Transited services indicate which intermediate services have participated in this logon request.
•Package name indicates which sub-protocol was used among the NTLM protocols
•Key length indicates the length of the generated session key. This will be 0 if no session key was requested

Status and Sub Status Codes Description
0xC0000064 user name does not exist
0xC000006A user name is correct but the password is wrong
0xC0000234 user is currently locked out
0xC0000072 account is currently disabled
0xC000006F user tried to logon outside his day of week or time of day restrictions
0xC0000070 workstation restriction
0xC0000193 account expiration
0xC0000071 expired password
0xC0000133 clocks between DC and other computer too far out of sync
0xC0000224 user is required to change password at next logon
0xC0000225 evidently a bug in Windows and not a risk
0xc000015b The user has not been granted the requested logon type (aka logon right) at this machine


Posted on September 11, 2015, in Windows. Bookmark the permalink. Leave a comment.

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