Hi all, I am not able to start ISASTGCTRL service on microsoft TMG server. Please find below error for your reference:- Active Directory Lightweight Directory Services could not be initialized. The directory service cannot recover from this error. User Action Restore the local directory service from backup media. Additional Data Error value: -550 [] Log Name: ADAM (ISASTGCTRL) Source: ADAM [ISASTGCTRL] General Date: XXXXXXXX Event ID: 1003 Task Category: Internal Processing Level: Error Keywords: Classic User: ANONYMOUS LOGON Computer: XXXXXX Thanks for your valuable input in this regard. Sincerely, Vineet