Windows Security Log Event ID 4776 on DC

I have a 2008 R2 DC with Windows 7 client.

When I login to client PC using local account instead of domain account several event logs are getting logged onto DC as shown below.

What is causing this event, and possible solution.

%NICWIN-4-Security_4776_Microsoft-Windows-Security-Auditing: Security,rn=425496272 cid=972 eid=672,Mon Jul 02 06:21:08 2018,4776,

Microsoft-Windows-Security-Auditing,,Audit Failure,dc01.contoso.net,Credential Validation,,The computer attempted to validate the credentials for an account. Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0 Logon Account: Administrator Source Workstation: CLIENT-PC01 Error Code: 0xc000006a