Reset the Computer Account Password, Don't Rejoin the Domain
Just another tip I forgot Sometimes the Computer Password gets hosed and you can't log on with a Domain Account. Rather than remove from the domain and rejoin it, just reset the computer password from an elevated command prompt. RESET Computer Password (Don't Rejoin to Domain) C:\> netdom.exe resetpwd /s:yourDomainCtrlr.domain.com /ud:YourDAAccount /pd:*