This blog
https://community.spiceworks.com/how_to/2776-powershell-sid-to-user-and-user-to-sid
by SpoonerTech at Spiceworks was very helpful at going back and forth using powershell to and from a User Id or a SID #
Thanks,
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
$strSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier])
$strSID.Value
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
("ENTER-SID-HERE")
$objUser = $objSID.Translate( [System.Security.Principal.NTAccount])
$objUser.Value