After disabling AD user his account permannently lock's.
Log event on lock source DC shows that:
4776,AUDIT FAILURE,Microsoft-Windows-Security-Auditing,Mon Apr 25 13:19:45 2011,No User, MICROSOFT_AUTHENTICATION_PACKAGE_V1_0 s.efremenko-adm H5WSUS 0xc0000234

How I can find a software, which use it's account to remove/change the credentials?
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Sikhumbuzo NtsadaIT AdministrationCommented:
You can rename the username then re-activate it should be fine, there known issues in microsoft windows where some services will catch a password then not release it when things change.

You can spend months figuring out which one it is or try the above.

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sergatAuthor Commented:
thank you! I ve rename this account.
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