Convert SID to Username and Username to SID using PowerShell

Convert SID to Username

$SID ='S-1-5-21-1924530255-1943933946-939161726-500'
$objSID = New-Object System.Security.Principal.SecurityIdentifier($SID) $objUser = $objSID.Translate([System.Security.Principal.NTAccount]) Write-Host "Resolved user name: " $objUser.Value

Convert Username to SID

$user ='TestDomainMorgan'
$objUser = New-Object System.Security.Principal.NTAccount($user) $objSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier]) Write-Host "Resolved user's sid: " $objSID.Value