If you’d need to find out the SID for a user name, here is a useful chunk of code that does the job:
$domain = 'MyDomain' $username = 'User01' $sid = (New-Object Security.Principal.NTAccount($domain, $username)).Translate([Security.Principal.SecurityIdentifier]).Value $sid
Just make sure you adjust domain name and username accordingly. If you need to find the SID for local accounts, set the domain name to the name of the local machine.
$username = 'Administrator' $sid = (New-Object Security.Principal.NTAccount($env:computername, $username)).Translate([Security.Principal.SecurityIdentifier]).Value $sid
This is much easier in PowerShell 5, though, because of a new cmdlet called Get-LocalUser:
PS C:\> Get-LocalUser | Select-Object -Property Name, Sid Name SID ---- --- Administrator S-1-5-21-2951074159-1791007430-3873049619-500 CCIE S-1-5-21-2951074159-1791007430-3873049619-1000 DefaultAccount S-1-5-21-2951074159-1791007430-3873049619-503 Guest S-1-5-21-2951074159-1791007430-3873049619-501
