Finding instances of BitLocker

Was responding to a forum question today about finding what workstations are running BitLocker. Following is a script that does just that:

Found this posting very helpful for the PacketPrivacy.

In this example I am specifically looking for computers running Windows 7.

$w = [wmi]''          
$w.PSBase.Scope.Options.Authentication = 'PacketPrivacy'          
$w.PSBase.Scope.Options.Authentication          
        
Get-QADComputer -OSName 'Windows 7*' | Select-Object Name | `
Foreach {          
  Get-WmiObject -ErrorAction SilentlyContinue `
      -Namespace 'root\cimv2\Security\MicrosoftVolumeEncryption' `
      -Impersonation 'impersonate' `
      -Authentication $w.PSBase.Scope.Options.Authentication `
      -Class win32_EncryptableVolume `
      -ComputerName $_.Name | Select __Server, DriveLetter          
}

Enjoy!