In our domain , many users are getting account locked. Same time an event log error in domain controller event id:12294 The SAM database was unable to lockout the account of Administrator due to a resource error, such as a hard disk write failure (the specific error code is in the error data) . Accounts are locked after a certain number of bad passwords are provided so please consider resetting the password of the account mentioned above.

Hi, Please refer to the following artilce to troubleshoot this problem: Event ID 12294 — Account Lockout http://technet.microsoft.com/en-us/library/cc733228(WS.10).aspx For more information about troubleshooting account lockout issue, you can use Account Lockout and management Tools to help rule out the root cause of this issue. Account Lockout and Management Tools http://www.microsoft.com/downloads/details.aspx?FamilyId=7AF2E69C-91F3-4E63-8629-B999ADDE0B9E&displaylang=en Troubleshooting account lockout problems in Windows Server 2003, in Windows 2000, and in Windows NT 4.0 http://support.microsoft.com/default.aspx?scid=kb;EN-US;315585 Hope this helps. Regards, Bruce This posting is provided "AS IS" with no warranties, and confers no rights. Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.