user account always locked out when the computer power on

this strange behavior make our team almost give up and reinstalling the windows, but at least we found the solution in this article :

https://social.technet.microsoft.com/Forums/windows/en-US/e1ef04fa-6aea-47fe-9392-45929239bd68/securitykerberos-event-id-14-credential-manager-causes-system-to-login-to-network-with-invalid?forum=w7itprosecurity

 

Here is what we do to solved that:

  1. Download PsExec.exe from http://technet.microsoft.com/en-us/sysinternals/bb897553.aspx and copy it to C:\Windows\System32 .
  2. From a command prompt run:    psexec -i -s -d cmd.exe
  3. From the new DOS window run:  rundll32 keymgr.dll,KRShowKeyMgr
  4. Remove any items that appear in the list of Stored User Names and Passwords.
  5. Restart the computer.

 

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