Domain User to SID This will give you a Domain User’s SID $objUser = New-Object System.Security.Principal.NTAccount(“DOMAIN_NAME”, “USER_NAME”) $strSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier]) $strSID.Value 2 SID to Domain User This will allow you to enter a SID and find the Domain User $objSID = New-Object System.Security.Principal.SecurityIdentifier ` (“ENTER-SID-HERE”) $objUser = $objSID.Translate( [System.Security.Principal.NTAccount]) $objUser.Value 3 LOCAL USER to SID