all ad users are locked out

ad users are locked out since this morning : i try to unlock manually but after a few moments they are locked again
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some scripts are running on server to lock all users.
check running process and users with administrator rights.
update antivirus
Swamish NaikExpertCommented:
You can use LockoutStatus.exe which is part of Account Lockout and Management tools to identify domain controller that are involved in lock-out user account.
If you have audit account logon security policy enabled, then you can proceed to filter through the security log of domain controller identify earlier for event related to lockout of this account.
The event log will provide you the error code which can help you identify reason for account lockout and source IP addresss/computer to help you identify which computer that generate the invalid logon attempt.
You can refer to following article for information related to troubleshooting account lockout issue:

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Sigurdur HaraldssonSystem AdministratorCommented:
This is one of the reasons Microsoft has gone from recommending a lockout policy to recommending a strong password (or passphrase) policies.
Don ThomsonCommented:
Check your date and time - on the AD server(s)
PberSolutions ArchitectCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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